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Published byEmory Greene Modified over 9 years ago

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EXAMPLE 2 Using the Cross Products Property 6.8 15.4 = 40.8 m Write original proportion. Cross products property Multiply. 6.8m 6.8 = 628.32 6.8 Divide each side by 6.8. m = 92.4 Simplify. Check: You can check your solution by finding the cross products of the proportion. If the cross products are equal, the solution is correct. 6.8m = 15.4 (40.8) 6.8m = 628.32

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EXAMPLE 2 Substitute 92.4 for m. Multiply. 6.8 (92.4) 15.4 (40.8) = ? 628.32 628.32 = ? 6.8 15.4 = 40.8 92.4 Using the Cross Products Property

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. 5.5. 6 c = 54 99 =11c

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. 6.6. n 14 = 63 84 = n 10.5

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. 7.7. 2.1 0.9 = 27.3 y = y 11.7

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. =32.4x 8.8. 16.2 67.4 = x 134.8

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. 9.9. 8 a = 0.4 0.62 =12.4a

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GUIDED PRACTICE for Example 2 Solve the proportion. Then check your solution. 10. b 1.8 = 49.6 14.4 =b6.2

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