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Finding the Third Proportional to 6,728 and 15,868

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Solution

The third proportional to 6,728 and 15,868 is: 37,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728 : 15,868 = 15,868 : x
  2. Step 2: Convert to fraction form
    6,728/15,868 = 15,868/x
  3. Step 3: Cross multiply
    6,728x = 15,868 × 15,868
  4. Step 4: Simplify right side
    6,728x = 251,793,424
  5. Step 5: Solve for x
    x = 251,793,424/6,728
  6. Step 6: Final answer
    x = 37,424.71

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.