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Finding the Fourth Proportional to 69,974.62, 96,561.48 and 39,755.95

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Solution

The fourth proportional to 69,974.62, 96,561.48 and 39,755.95 is: 54,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,974.62 : 96,561.48 = 39,755.95 : x
  2. Step 2: Convert to fraction form
    69,974.62/96,561.48 = 39,755.95/x
  3. Step 3: Cross multiply
    69,974.62x = 96,561.48 × 39,755.95
  4. Step 4: Simplify right side
    69,974.62x = 3,838,893,278.49
  5. Step 5: Solve for x
    x = 3,838,893,278.49/69,974.62
  6. Step 6: Final answer
    x = 54,861.23

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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.