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Find the value of x in each of the follo...

Find the value of x in each of the followings proportions.
(i) 17: 68 :: 7 :x (ii( 14 : 42 :: x: 27

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The correct Answer is:
(i) 28 (ii) 9
17 : 68 : : 7 :x
`Rightarrow 17/68 = 7/x`
x = 28
(ii) 14 : 42: : x : 27
` 14/42 = x/ 27`
`1/3 = x/27`
x=9
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