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Finding the Third Proportional to 20,106 and 27,423

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Solution

The third proportional to 20,106 and 27,423 is: 37,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106 : 27,423 = 27,423 : x
  2. Step 2: Convert to fraction form
    20,106/27,423 = 27,423/x
  3. Step 3: Cross multiply
    20,106x = 27,423 × 27,423
  4. Step 4: Simplify right side
    20,106x = 752,020,929
  5. Step 5: Solve for x
    x = 752,020,929/20,106
  6. Step 6: Final answer
    x = 37,402.81

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.