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Finding the Fourth Proportional to 72,646.97, 100,264.71 and 60,528.23

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Solution

The fourth proportional to 72,646.97, 100,264.71 and 60,528.23 is: 83,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,646.97 : 100,264.71 = 60,528.23 : x
  2. Step 2: Convert to fraction form
    72,646.97/100,264.71 = 60,528.23/x
  3. Step 3: Cross multiply
    72,646.97x = 100,264.71 × 60,528.23
  4. Step 4: Simplify right side
    72,646.97x = 6,068,845,427.76
  5. Step 5: Solve for x
    x = 6,068,845,427.76/72,646.97
  6. Step 6: Final answer
    x = 83,538.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.