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Finding the Fourth Proportional to 54,986.97, 82,443.47 and 25,388.49

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Solution

The fourth proportional to 54,986.97, 82,443.47 and 25,388.49 is: 38,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,986.97 : 82,443.47 = 25,388.49 : x
  2. Step 2: Convert to fraction form
    54,986.97/82,443.47 = 25,388.49/x
  3. Step 3: Cross multiply
    54,986.97x = 82,443.47 × 25,388.49
  4. Step 4: Simplify right side
    54,986.97x = 2,093,115,086.72
  5. Step 5: Solve for x
    x = 2,093,115,086.72/54,986.97
  6. Step 6: Final answer
    x = 38,065.66

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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.