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Finding the Third Proportional to 18,862 and 41,489

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Solution

The third proportional to 18,862 and 41,489 is: 91,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862 : 41,489 = 41,489 : x
  2. Step 2: Convert to fraction form
    18,862/41,489 = 41,489/x
  3. Step 3: Cross multiply
    18,862x = 41,489 × 41,489
  4. Step 4: Simplify right side
    18,862x = 1,721,337,121
  5. Step 5: Solve for x
    x = 1,721,337,121/18,862
  6. Step 6: Final answer
    x = 91,259.52

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.