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Finding the Fourth Proportional to 58,359.52, 87,542.88 and 39,631.60

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Solution

The fourth proportional to 58,359.52, 87,542.88 and 39,631.60 is: 59,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,359.52 : 87,542.88 = 39,631.60 : x
  2. Step 2: Convert to fraction form
    58,359.52/87,542.88 = 39,631.60/x
  3. Step 3: Cross multiply
    58,359.52x = 87,542.88 × 39,631.60
  4. Step 4: Simplify right side
    58,359.52x = 3,469,464,403.01
  5. Step 5: Solve for x
    x = 3,469,464,403.01/58,359.52
  6. Step 6: Final answer
    x = 59,449.84

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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.