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Finding the Fourth Proportional to 62,382.88, 93,575.12 and 20,829.88

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Solution

The fourth proportional to 62,382.88, 93,575.12 and 20,829.88 is: 31,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,382.88 : 93,575.12 = 20,829.88 : x
  2. Step 2: Convert to fraction form
    62,382.88/93,575.12 = 20,829.88/x
  3. Step 3: Cross multiply
    62,382.88x = 93,575.12 × 20,829.88
  4. Step 4: Simplify right side
    62,382.88x = 1,949,158,520.59
  5. Step 5: Solve for x
    x = 1,949,158,520.59/62,382.88
  6. Step 6: Final answer
    x = 31,245.09

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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.