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Finding the Third Proportional to 16,872 and 36,338

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Solution

The third proportional to 16,872 and 36,338 is: 78,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872 : 36,338 = 36,338 : x
  2. Step 2: Convert to fraction form
    16,872/36,338 = 36,338/x
  3. Step 3: Cross multiply
    16,872x = 36,338 × 36,338
  4. Step 4: Simplify right side
    16,872x = 1,320,450,244
  5. Step 5: Solve for x
    x = 1,320,450,244/16,872
  6. Step 6: Final answer
    x = 78,262.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.