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Finding the Fourth Proportional to 22,620.52, 33,952.74 and 13,872.52

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Solution

The fourth proportional to 22,620.52, 33,952.74 and 13,872.52 is: 20,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.52 : 33,952.74 = 13,872.52 : x
  2. Step 2: Convert to fraction form
    22,620.52/33,952.74 = 13,872.52/x
  3. Step 3: Cross multiply
    22,620.52x = 33,952.74 × 13,872.52
  4. Step 4: Simplify right side
    22,620.52x = 471,010,064.70
  5. Step 5: Solve for x
    x = 471,010,064.70/22,620.52
  6. Step 6: Final answer
    x = 20,822.25

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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.