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Finding the Third Proportional to 16,864 and 39,400

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Solution

The third proportional to 16,864 and 39,400 is: 92,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,864 : 39,400 = 39,400 : x
  2. Step 2: Convert to fraction form
    16,864/39,400 = 39,400/x
  3. Step 3: Cross multiply
    16,864x = 39,400 × 39,400
  4. Step 4: Simplify right side
    16,864x = 1,552,360,000
  5. Step 5: Solve for x
    x = 1,552,360,000/16,864
  6. Step 6: Final answer
    x = 92,051.71

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.