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Finding the Third Proportional to 39,284 and 80,872

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Solution

The third proportional to 39,284 and 80,872 is: 166,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,284 : 80,872 = 80,872 : x
  2. Step 2: Convert to fraction form
    39,284/80,872 = 80,872/x
  3. Step 3: Cross multiply
    39,284x = 80,872 × 80,872
  4. Step 4: Simplify right side
    39,284x = 6,540,280,384
  5. Step 5: Solve for x
    x = 6,540,280,384/39,284
  6. Step 6: Final answer
    x = 166,487.13

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.