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Finding the Fourth Proportional to 67,565.38, 93,251.82 and 39,287.50

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Solution

The fourth proportional to 67,565.38, 93,251.82 and 39,287.50 is: 54,223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,565.38 : 93,251.82 = 39,287.50 : x
  2. Step 2: Convert to fraction form
    67,565.38/93,251.82 = 39,287.50/x
  3. Step 3: Cross multiply
    67,565.38x = 93,251.82 × 39,287.50
  4. Step 4: Simplify right side
    67,565.38x = 3,663,630,878.25
  5. Step 5: Solve for x
    x = 3,663,630,878.25/67,565.38
  6. Step 6: Final answer
    x = 54,223.49

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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.