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Finding the Fourth Proportional to 54,306.88, 81,473.04 and 16,865.04

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Solution

The fourth proportional to 54,306.88, 81,473.04 and 16,865.04 is: 25,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306.88 : 81,473.04 = 16,865.04 : x
  2. Step 2: Convert to fraction form
    54,306.88/81,473.04 = 16,865.04/x
  3. Step 3: Cross multiply
    54,306.88x = 81,473.04 × 16,865.04
  4. Step 4: Simplify right side
    54,306.88x = 1,374,046,078.52
  5. Step 5: Solve for x
    x = 1,374,046,078.52/54,306.88
  6. Step 6: Final answer
    x = 25,301.51

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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.