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Finding the Third Proportional to 20,606 and 38,266

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Solution

The third proportional to 20,606 and 38,266 is: 71,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606 : 38,266 = 38,266 : x
  2. Step 2: Convert to fraction form
    20,606/38,266 = 38,266/x
  3. Step 3: Cross multiply
    20,606x = 38,266 × 38,266
  4. Step 4: Simplify right side
    20,606x = 1,464,286,756
  5. Step 5: Solve for x
    x = 1,464,286,756/20,606
  6. Step 6: Final answer
    x = 71,061.18

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.