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Finding the Fourth Proportional to 71,198.52, 98,251.50 and 38,933.92

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Solution

The fourth proportional to 71,198.52, 98,251.50 and 38,933.92 is: 53,727.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,198.52 : 98,251.50 = 38,933.92 : x
  2. Step 2: Convert to fraction form
    71,198.52/98,251.50 = 38,933.92/x
  3. Step 3: Cross multiply
    71,198.52x = 98,251.50 × 38,933.92
  4. Step 4: Simplify right side
    71,198.52x = 3,825,316,040.88
  5. Step 5: Solve for x
    x = 3,825,316,040.88/71,198.52
  6. Step 6: Final answer
    x = 53,727.47

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1.5x scale

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.