Answer:
If a ∶ b = c ∶ d, then d is the fourth proportional of a, b, c
Let ‘x’ be the fourth proportional of the given numbers
Hence, we can write,
⇒ 24 ∶ 108 = 18 ∶ x
⇒ 2/9 = 18/x
⇒ x = (18 × 9)/2
⇒ x = 81
∴ The fourth proportional of 24, 108 and 18 is 81
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Answer:
If a ∶ b = c ∶ d, then d is the fourth proportional of a, b, c
Let ‘x’ be the fourth proportional of the given numbers
Hence, we can write,
⇒ 24 ∶ 108 = 18 ∶ x
⇒ 2/9 = 18/x
⇒ x = (18 × 9)/2
⇒ x = 81
∴ The fourth proportional of 24, 108 and 18 is 81
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