1. Find the fourth proportional to :
(i) 1.5, 4.5 and 3-5
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Answer:
(i) Let the fourth proportional to 1.5, 4.5 and 3.5 be x. ⟹1.5 : 4.5 = 3.5 : x ⟹ 1.5 × x = 3.5 × 4.5 ⟹ x = 10.5
Explanation:
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