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Finding the Fourth Proportional to 69,969.38, 96,560.24 and 39,755.97

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Solution

The fourth proportional to 69,969.38, 96,560.24 and 39,755.97 is: 54,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.38 : 96,560.24 = 39,755.97 : x
  2. Step 2: Convert to fraction form
    69,969.38/96,560.24 = 39,755.97/x
  3. Step 3: Cross multiply
    69,969.38x = 96,560.24 × 39,755.97
  4. Step 4: Simplify right side
    69,969.38x = 3,838,845,805.85
  5. Step 5: Solve for x
    x = 3,838,845,805.85/69,969.38
  6. Step 6: Final answer
    x = 54,864.66

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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.