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Finding the Third Proportional to 18,124 and 39,701

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Solution

The third proportional to 18,124 and 39,701 is: 86,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124 : 39,701 = 39,701 : x
  2. Step 2: Convert to fraction form
    18,124/39,701 = 39,701/x
  3. Step 3: Cross multiply
    18,124x = 39,701 × 39,701
  4. Step 4: Simplify right side
    18,124x = 1,576,169,401
  5. Step 5: Solve for x
    x = 1,576,169,401/18,124
  6. Step 6: Final answer
    x = 86,965.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.