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Finding the Fourth Proportional to 18,339.73, 27,505.17 and 8,469.52

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Solution

The fourth proportional to 18,339.73, 27,505.17 and 8,469.52 is: 12,702.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.73 : 27,505.17 = 8,469.52 : x
  2. Step 2: Convert to fraction form
    18,339.73/27,505.17 = 8,469.52/x
  3. Step 3: Cross multiply
    18,339.73x = 27,505.17 × 8,469.52
  4. Step 4: Simplify right side
    18,339.73x = 232,955,587.42
  5. Step 5: Solve for x
    x = 232,955,587.42/18,339.73
  6. Step 6: Final answer
    x = 12,702.24

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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.