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Finding the Fourth Proportional to 54,481.87, 81,722.94 and 17,042.19

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Solution

The fourth proportional to 54,481.87, 81,722.94 and 17,042.19 is: 25,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,481.87 : 81,722.94 = 17,042.19 : x
  2. Step 2: Convert to fraction form
    54,481.87/81,722.94 = 17,042.19/x
  3. Step 3: Cross multiply
    54,481.87x = 81,722.94 × 17,042.19
  4. Step 4: Simplify right side
    54,481.87x = 1,392,737,870.84
  5. Step 5: Solve for x
    x = 1,392,737,870.84/54,481.87
  6. Step 6: Final answer
    x = 25,563.33

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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.