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Finding the Fourth Proportional to 69,553.68, 95,961.96 and 39,335.28

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Solution

The fourth proportional to 69,553.68, 95,961.96 and 39,335.28 is: 54,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,553.68 : 95,961.96 = 39,335.28 : x
  2. Step 2: Convert to fraction form
    69,553.68/95,961.96 = 39,335.28/x
  3. Step 3: Cross multiply
    69,553.68x = 95,961.96 × 39,335.28
  4. Step 4: Simplify right side
    69,553.68x = 3,774,690,565.95
  5. Step 5: Solve for x
    x = 3,774,690,565.95/69,553.68
  6. Step 6: Final answer
    x = 54,270.18

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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.