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Finding the Fourth Proportional to 22,352.06, 30,843.38 and 13,399.26

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Solution

The fourth proportional to 22,352.06, 30,843.38 and 13,399.26 is: 18,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,352.06 : 30,843.38 = 13,399.26 : x
  2. Step 2: Convert to fraction form
    22,352.06/30,843.38 = 13,399.26/x
  3. Step 3: Cross multiply
    22,352.06x = 30,843.38 × 13,399.26
  4. Step 4: Simplify right side
    22,352.06x = 413,278,467.90
  5. Step 5: Solve for x
    x = 413,278,467.90/22,352.06
  6. Step 6: Final answer
    x = 18,489.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.