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Finding the Third Proportional to 16,213.92 and 20,717.65

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Solution

The third proportional to 16,213.92 and 20,717.65 is: 26,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,213.92 : 20,717.65 = 20,717.65 : x
  2. Step 2: Convert to fraction form
    16,213.92/20,717.65 = 20,717.65/x
  3. Step 3: Cross multiply
    16,213.92x = 20,717.65 × 20,717.65
  4. Step 4: Simplify right side
    16,213.92x = 429,220,956.78
  5. Step 5: Solve for x
    x = 429,220,956.78/16,213.92
  6. Step 6: Final answer
    x = 26,472.37

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.