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Finding the Fourth Proportional to 60,693.52, 91,053.27 and 21,251.92

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Solution

The fourth proportional to 60,693.52, 91,053.27 and 21,251.92 is: 31,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,693.52 : 91,053.27 = 21,251.92 : x
  2. Step 2: Convert to fraction form
    60,693.52/91,053.27 = 21,251.92/x
  3. Step 3: Cross multiply
    60,693.52x = 91,053.27 × 21,251.92
  4. Step 4: Simplify right side
    60,693.52x = 1,935,056,809.78
  5. Step 5: Solve for x
    x = 1,935,056,809.78/60,693.52
  6. Step 6: Final answer
    x = 31,882.43

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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.