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Finding the Fourth Proportional to 72,656.92, 109,002.84 and 25,265.08

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Solution

The fourth proportional to 72,656.92, 109,002.84 and 25,265.08 is: 37,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,656.92 : 109,002.84 = 25,265.08 : x
  2. Step 2: Convert to fraction form
    72,656.92/109,002.84 = 25,265.08/x
  3. Step 3: Cross multiply
    72,656.92x = 109,002.84 × 25,265.08
  4. Step 4: Simplify right side
    72,656.92x = 2,753,965,472.83
  5. Step 5: Solve for x
    x = 2,753,965,472.83/72,656.92
  6. Step 6: Final answer
    x = 37,903.69

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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.