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Finding the Third Proportional to 33,031 and 71,894

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Solution

The third proportional to 33,031 and 71,894 is: 156,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,031 : 71,894 = 71,894 : x
  2. Step 2: Convert to fraction form
    33,031/71,894 = 71,894/x
  3. Step 3: Cross multiply
    33,031x = 71,894 × 71,894
  4. Step 4: Simplify right side
    33,031x = 5,168,747,236
  5. Step 5: Solve for x
    x = 5,168,747,236/33,031
  6. Step 6: Final answer
    x = 156,481.71

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.