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Noteables Interactive Study Notebook (26491.0K) - McGraw-Hill ...

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6–4Algebra: Solving ProportionsEXAMPLES Solve Using Equivalent FractionsMAIN IDEA• Solve proportions.Solve each proportion.4__5 = 28xFind a value for x so the fractions are equivalent.× 74_5 = _ 28x× 7Since 4 × 7 = 28, multiply the numeratorand denominator by 7.4_5 =Since 5 × 7 = 35, x = .b__5 = 1620× 4b_5 = _ 1620× 4= 16 _20Since 4 × 4 = 16, b = ._ 1938 = _ n2219_÷ 2 ÷ 22238 = n _So, n = .a. _ 3 8 = _ 9 xSince 5 × 4 = 20, multiply the numeratorand denominator by 4.Since 38 ÷ 2 = 19, divide eachdenominator by 2.19_ = THINK What is 22 divided by 2?38Check Your Progress Solve each proportion.b. _ 1824 = _ m c. 12_448 = _ f28Copyright © Glencoe/<strong>McGraw</strong>-<strong>Hill</strong>, a division of The <strong>McGraw</strong>-<strong>Hill</strong> Companies, Inc.154 Math Connects, Course 1

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