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Finding the Third Proportional to 39,940 and 61,182

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Solution

The third proportional to 39,940 and 61,182 is: 93,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940 : 61,182 = 61,182 : x
  2. Step 2: Convert to fraction form
    39,940/61,182 = 61,182/x
  3. Step 3: Cross multiply
    39,940x = 61,182 × 61,182
  4. Step 4: Simplify right side
    39,940x = 3,743,237,124
  5. Step 5: Solve for x
    x = 3,743,237,124/39,940
  6. Step 6: Final answer
    x = 93,721.51

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.