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Finding the Fourth Proportional to 31,628.62, 43,646.88 and 17,481.52

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Solution

The fourth proportional to 31,628.62, 43,646.88 and 17,481.52 is: 24,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,628.62 : 43,646.88 = 17,481.52 : x
  2. Step 2: Convert to fraction form
    31,628.62/43,646.88 = 17,481.52/x
  3. Step 3: Cross multiply
    31,628.62x = 43,646.88 × 17,481.52
  4. Step 4: Simplify right side
    31,628.62x = 763,013,805.66
  5. Step 5: Solve for x
    x = 763,013,805.66/31,628.62
  6. Step 6: Final answer
    x = 24,124.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.