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Finding the Third Proportional to 13,943.25 and 20,449.88

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Solution

The third proportional to 13,943.25 and 20,449.88 is: 29,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.25 : 20,449.88 = 20,449.88 : x
  2. Step 2: Convert to fraction form
    13,943.25/20,449.88 = 20,449.88/x
  3. Step 3: Cross multiply
    13,943.25x = 20,449.88 × 20,449.88
  4. Step 4: Simplify right side
    13,943.25x = 418,197,387.52
  5. Step 5: Solve for x
    x = 418,197,387.52/13,943.25
  6. Step 6: Final answer
    x = 29,992.82

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.