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Finding the Fourth Proportional to 54,381.65, 81,563.22 and 14,929.52

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Solution

The fourth proportional to 54,381.65, 81,563.22 and 14,929.52 is: 22,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,381.65 : 81,563.22 = 14,929.52 : x
  2. Step 2: Convert to fraction form
    54,381.65/81,563.22 = 14,929.52/x
  3. Step 3: Cross multiply
    54,381.65x = 81,563.22 × 14,929.52
  4. Step 4: Simplify right side
    54,381.65x = 1,217,699,316.44
  5. Step 5: Solve for x
    x = 1,217,699,316.44/54,381.65
  6. Step 6: Final answer
    x = 22,391.73

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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.