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Finding the Fourth Proportional to 67,963.38, 93,789.46 and 38,155.38

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Solution

The fourth proportional to 67,963.38, 93,789.46 and 38,155.38 is: 52,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,963.38 : 93,789.46 = 38,155.38 : x
  2. Step 2: Convert to fraction form
    67,963.38/93,789.46 = 38,155.38/x
  3. Step 3: Cross multiply
    67,963.38x = 93,789.46 × 38,155.38
  4. Step 4: Simplify right side
    67,963.38x = 3,578,572,486.29
  5. Step 5: Solve for x
    x = 3,578,572,486.29/67,963.38
  6. Step 6: Final answer
    x = 52,654.42

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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.