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70/x = 15/21 solve proportion
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70/x = 15/21 solve proportion

User Fran Sevillano
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I believe this is the answer: 70 divided by 15= 4.66666667. So 21 times that = x. 21 times 4.66666667= 98. So x= 98.
User Jhilden
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(a)/(b) = (c)/(d) ad=bc
User Debby Mendez
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