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Finding the Third Proportional to 3,986 and 9,401

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Solution

The third proportional to 3,986 and 9,401 is: 22,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986 : 9,401 = 9,401 : x
  2. Step 2: Convert to fraction form
    3,986/9,401 = 9,401/x
  3. Step 3: Cross multiply
    3,986x = 9,401 × 9,401
  4. Step 4: Simplify right side
    3,986x = 88,378,801
  5. Step 5: Solve for x
    x = 88,378,801/3,986
  6. Step 6: Final answer
    x = 22,172.30

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.