Find the 4th proportional to 2a,3b and 4c
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Step-by-step explanation:
- a/b=c/d
- therefore d=bc/a
- let d be x
- 2a/3b=4c/x
- 2a*x=4c*3b
- x=12bc/2a
- x=6bc/a
………….. therefore d in terms of a b and c is equal to 6bc/a
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