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Finding the Fourth Proportional to 18,641.52, 27,963.16 and 6,162.66

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Solution

The fourth proportional to 18,641.52, 27,963.16 and 6,162.66 is: 9,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.52 : 27,963.16 = 6,162.66 : x
  2. Step 2: Convert to fraction form
    18,641.52/27,963.16 = 6,162.66/x
  3. Step 3: Cross multiply
    18,641.52x = 27,963.16 × 6,162.66
  4. Step 4: Simplify right side
    18,641.52x = 172,327,447.61
  5. Step 5: Solve for x
    x = 172,327,447.61/18,641.52
  6. Step 6: Final answer
    x = 9,244.28

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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.