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Finding the Fourth Proportional to 54,589.92, 81,885.89 and 17,149.29

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Solution

The fourth proportional to 54,589.92, 81,885.89 and 17,149.29 is: 25,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,589.92 : 81,885.89 = 17,149.29 : x
  2. Step 2: Convert to fraction form
    54,589.92/81,885.89 = 17,149.29/x
  3. Step 3: Cross multiply
    54,589.92x = 81,885.89 × 17,149.29
  4. Step 4: Simplify right side
    54,589.92x = 1,404,284,917.39
  5. Step 5: Solve for x
    x = 1,404,284,917.39/54,589.92
  6. Step 6: Final answer
    x = 25,724.25

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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.