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Finding the Third Proportional to 18,858 and 41,481

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Solution

The third proportional to 18,858 and 41,481 is: 91,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858 : 41,481 = 41,481 : x
  2. Step 2: Convert to fraction form
    18,858/41,481 = 41,481/x
  3. Step 3: Cross multiply
    18,858x = 41,481 × 41,481
  4. Step 4: Simplify right side
    18,858x = 1,720,673,361
  5. Step 5: Solve for x
    x = 1,720,673,361/18,858
  6. Step 6: Final answer
    x = 91,243.68

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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.