The fourth proportional to 5,8,15 is?
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THE FOURTH PROPORTIONAL TO 5 , 8 , 15 IS 24
Step-by-step explanation:
WE ALL KNOW ,
PRODUCT OF MEANS = PRODUCT OF EXTREMES
LET THE FOURTH PROPORTIONAL BE X
SO , PRODUCT OF EXTREMES = 5 × x = 5x
PRODUCT OF MEANS = 8 × 15 = 120
SO, 5x = 120
x = 120 /5
= 24.
SO, THE FOURTH PROPORTIONAL = 24 .
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