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Finding the Third Proportional to 16,839 and 20,079

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Solution

The third proportional to 16,839 and 20,079 is: 23,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,839 : 20,079 = 20,079 : x
  2. Step 2: Convert to fraction form
    16,839/20,079 = 20,079/x
  3. Step 3: Cross multiply
    16,839x = 20,079 × 20,079
  4. Step 4: Simplify right side
    16,839x = 403,166,241
  5. Step 5: Solve for x
    x = 403,166,241/16,839
  6. Step 6: Final answer
    x = 23,942.41

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.