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Finding the Third Proportional to 14,019.75 and 20,908.13

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Solution

The third proportional to 14,019.75 and 20,908.13 is: 31,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.75 : 20,908.13 = 20,908.13 : x
  2. Step 2: Convert to fraction form
    14,019.75/20,908.13 = 20,908.13/x
  3. Step 3: Cross multiply
    14,019.75x = 20,908.13 × 20,908.13
  4. Step 4: Simplify right side
    14,019.75x = 437,149,691.02
  5. Step 5: Solve for x
    x = 437,149,691.02/14,019.75
  6. Step 6: Final answer
    x = 31,180.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.