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Finding the Third Proportional to 20,667 and 47,982

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Solution

The third proportional to 20,667 and 47,982 is: 111,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667 : 47,982 = 47,982 : x
  2. Step 2: Convert to fraction form
    20,667/47,982 = 47,982/x
  3. Step 3: Cross multiply
    20,667x = 47,982 × 47,982
  4. Step 4: Simplify right side
    20,667x = 2,302,272,324
  5. Step 5: Solve for x
    x = 2,302,272,324/20,667
  6. Step 6: Final answer
    x = 111,398.48

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.