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Finding the Third Proportional to 38,734 and 82,119

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Solution

The third proportional to 38,734 and 82,119 is: 174,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,734 : 82,119 = 82,119 : x
  2. Step 2: Convert to fraction form
    38,734/82,119 = 82,119/x
  3. Step 3: Cross multiply
    38,734x = 82,119 × 82,119
  4. Step 4: Simplify right side
    38,734x = 6,743,530,161
  5. Step 5: Solve for x
    x = 6,743,530,161/38,734
  6. Step 6: Final answer
    x = 174,098.47

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.