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Finding the Fourth Proportional to 54,504.16, 81,756.04 and 15,061.20

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Solution

The fourth proportional to 54,504.16, 81,756.04 and 15,061.20 is: 22,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,504.16 : 81,756.04 = 15,061.20 : x
  2. Step 2: Convert to fraction form
    54,504.16/81,756.04 = 15,061.20/x
  3. Step 3: Cross multiply
    54,504.16x = 81,756.04 × 15,061.20
  4. Step 4: Simplify right side
    54,504.16x = 1,231,344,069.65
  5. Step 5: Solve for x
    x = 1,231,344,069.65/54,504.16
  6. Step 6: Final answer
    x = 22,591.74

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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.