Please help me understand how to do the problem and what the answer is

The force required to move the object by 15 feet will be 48 lbs.
The effort or an external agent responsible for moving or stopping any object is called a force. It is given that the force required to move the object at the distance of 9 feet is 80 lbs we need to calculate the force required to move the object by 15 feet.
The force will be calculated. We can make an equation from the given data in the question:-
[F1/F2] = [d2/d1]
F2 = [F1 x d1 ] / [d2]
F2 = [ 80 x 9 ] / [ 15 ]
F2 = a
Therefore the force required to move the object by 15 feet will be 48 lbs.
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