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Finding the Fourth Proportional to 18,432.29, 27,648.42 and 4,581.29

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Solution

The fourth proportional to 18,432.29, 27,648.42 and 4,581.29 is: 6,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.29 : 27,648.42 = 4,581.29 : x
  2. Step 2: Convert to fraction form
    18,432.29/27,648.42 = 4,581.29/x
  3. Step 3: Cross multiply
    18,432.29x = 27,648.42 × 4,581.29
  4. Step 4: Simplify right side
    18,432.29x = 126,665,291.82
  5. Step 5: Solve for x
    x = 126,665,291.82/18,432.29
  6. Step 6: Final answer
    x = 6,871.93

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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.