Q. Find the value of x :
  1. 14:30::7:x








 

Please find this answer

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In a proportion, 
Product of means = Product of extremes
14 * x = 30 * 7
x = (30 * 7)/ 14
x = 210/14
= 15
Therefore, 14:30::7:15
 
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14:30=7:15
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