Practicing Success
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CUET
General Test
Numerical Ability
Ratios
The fourth proportional to 5, 8 and 30 is :
50
60
48
90
5 : 8 :: 30 : x
⇒The third proportional x,
⇒ 5x = 8 x 30
⇒ 5x = 240
⇒ x = 48.