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Finding the Third Proportional to 3,831 and 8,273

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Solution

The third proportional to 3,831 and 8,273 is: 17,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831 : 8,273 = 8,273 : x
  2. Step 2: Convert to fraction form
    3,831/8,273 = 8,273/x
  3. Step 3: Cross multiply
    3,831x = 8,273 × 8,273
  4. Step 4: Simplify right side
    3,831x = 68,442,529
  5. Step 5: Solve for x
    x = 68,442,529/3,831
  6. Step 6: Final answer
    x = 17,865.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.