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Finding the Fourth Proportional to 67,635.59, 101,470.07 and 20,888.46

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Solution

The fourth proportional to 67,635.59, 101,470.07 and 20,888.46 is: 31,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,635.59 : 101,470.07 = 20,888.46 : x
  2. Step 2: Convert to fraction form
    67,635.59/101,470.07 = 20,888.46/x
  3. Step 3: Cross multiply
    67,635.59x = 101,470.07 × 20,888.46
  4. Step 4: Simplify right side
    67,635.59x = 2,119,553,550.61
  5. Step 5: Solve for x
    x = 2,119,553,550.61/67,635.59
  6. Step 6: Final answer
    x = 31,337.85

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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.