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Finding the Fourth Proportional to 67,788.52, 101,604.12 and 25,641.80

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Solution

The fourth proportional to 67,788.52, 101,604.12 and 25,641.80 is: 38,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,788.52 : 101,604.12 = 25,641.80 : x
  2. Step 2: Convert to fraction form
    67,788.52/101,604.12 = 25,641.80/x
  3. Step 3: Cross multiply
    67,788.52x = 101,604.12 × 25,641.80
  4. Step 4: Simplify right side
    67,788.52x = 2,605,312,524.22
  5. Step 5: Solve for x
    x = 2,605,312,524.22/67,788.52
  6. Step 6: Final answer
    x = 38,432.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.