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Finding the Fourth Proportional to 67,766.80, 101,634.52 and 25,651.76

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Solution

The fourth proportional to 67,766.80, 101,634.52 and 25,651.76 is: 38,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,766.80 : 101,634.52 = 25,651.76 : x
  2. Step 2: Convert to fraction form
    67,766.80/101,634.52 = 25,651.76/x
  3. Step 3: Cross multiply
    67,766.80x = 101,634.52 × 25,651.76
  4. Step 4: Simplify right side
    67,766.80x = 2,607,104,314.76
  5. Step 5: Solve for x
    x = 2,607,104,314.76/67,766.80
  6. Step 6: Final answer
    x = 38,471.70

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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.