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Finding the Fourth Proportional to 83,713.52, 125,596.20 and 39,338.48

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Solution

The fourth proportional to 83,713.52, 125,596.20 and 39,338.48 is: 59,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,713.52 : 125,596.20 = 39,338.48 : x
  2. Step 2: Convert to fraction form
    83,713.52/125,596.20 = 39,338.48/x
  3. Step 3: Cross multiply
    83,713.52x = 125,596.20 × 39,338.48
  4. Step 4: Simplify right side
    83,713.52x = 4,940,763,601.78
  5. Step 5: Solve for x
    x = 4,940,763,601.78/83,713.52
  6. Step 6: Final answer
    x = 59,019.90

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1.5x scale

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.