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Finding the Fourth Proportional to 54,369.87, 81,562.41 and 16,932.66

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Solution

The fourth proportional to 54,369.87, 81,562.41 and 16,932.66 is: 25,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,369.87 : 81,562.41 = 16,932.66 : x
  2. Step 2: Convert to fraction form
    54,369.87/81,562.41 = 16,932.66/x
  3. Step 3: Cross multiply
    54,369.87x = 81,562.41 × 16,932.66
  4. Step 4: Simplify right side
    54,369.87x = 1,381,068,557.31
  5. Step 5: Solve for x
    x = 1,381,068,557.31/54,369.87
  6. Step 6: Final answer
    x = 25,401.36

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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.