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Finding the Fourth Proportional to 60,566.52, 90,864.90 and 21,124.20

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Solution

The fourth proportional to 60,566.52, 90,864.90 and 21,124.20 is: 31,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,566.52 : 90,864.90 = 21,124.20 : x
  2. Step 2: Convert to fraction form
    60,566.52/90,864.90 = 21,124.20/x
  3. Step 3: Cross multiply
    60,566.52x = 90,864.90 × 21,124.20
  4. Step 4: Simplify right side
    60,566.52x = 1,919,448,320.58
  5. Step 5: Solve for x
    x = 1,919,448,320.58/60,566.52
  6. Step 6: Final answer
    x = 31,691.57

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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.