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Finding the Fourth Proportional to 54,604.80, 81,910.92 and 18,566.58

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Solution

The fourth proportional to 54,604.80, 81,910.92 and 18,566.58 is: 27,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,604.80 : 81,910.92 = 18,566.58 : x
  2. Step 2: Convert to fraction form
    54,604.80/81,910.92 = 18,566.58/x
  3. Step 3: Cross multiply
    54,604.80x = 81,910.92 × 18,566.58
  4. Step 4: Simplify right side
    54,604.80x = 1,520,805,649.05
  5. Step 5: Solve for x
    x = 1,520,805,649.05/54,604.80
  6. Step 6: Final answer
    x = 27,851.13

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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.