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Finding the Fourth Proportional to 54,530.88, 81,796.21 and 15,087.88

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Solution

The fourth proportional to 54,530.88, 81,796.21 and 15,087.88 is: 22,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,530.88 : 81,796.21 = 15,087.88 : x
  2. Step 2: Convert to fraction form
    54,530.88/81,796.21 = 15,087.88/x
  3. Step 3: Cross multiply
    54,530.88x = 81,796.21 × 15,087.88
  4. Step 4: Simplify right side
    54,530.88x = 1,234,131,400.93
  5. Step 5: Solve for x
    x = 1,234,131,400.93/54,530.88
  6. Step 6: Final answer
    x = 22,631.79

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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.