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Finding the Fourth Proportional to 54,698.70, 82,061.91 and 15,255.81

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Solution

The fourth proportional to 54,698.70, 82,061.91 and 15,255.81 is: 22,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,698.70 : 82,061.91 = 15,255.81 : x
  2. Step 2: Convert to fraction form
    54,698.70/82,061.91 = 15,255.81/x
  3. Step 3: Cross multiply
    54,698.70x = 82,061.91 × 15,255.81
  4. Step 4: Simplify right side
    54,698.70x = 1,251,920,907.20
  5. Step 5: Solve for x
    x = 1,251,920,907.20/54,698.70
  6. Step 6: Final answer
    x = 22,887.58

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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.