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Finding the Third Proportional to 38,992 and 82,636

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Solution

The third proportional to 38,992 and 82,636 is: 175,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992 : 82,636 = 82,636 : x
  2. Step 2: Convert to fraction form
    38,992/82,636 = 82,636/x
  3. Step 3: Cross multiply
    38,992x = 82,636 × 82,636
  4. Step 4: Simplify right side
    38,992x = 6,828,708,496
  5. Step 5: Solve for x
    x = 6,828,708,496/38,992
  6. Step 6: Final answer
    x = 175,131.01

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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.