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If x:y=2:3 and y :z=5:7,find x:y:z

Guest Apr 24, 2016

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x/y = 2/3 y/z = 5/7 Multiply the two together to get x/z = 10/21

Can express y/z as 15/21

So: x:y:z = 10:15:21

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Alan Apr 24, 2016

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