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Finding the Third Proportional to 3,789.50 and 8,267

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Solution

The third proportional to 3,789.50 and 8,267 is: 18,034.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.50 : 8,267 = 8,267 : x
  2. Step 2: Convert to fraction form
    3,789.50/8,267 = 8,267/x
  3. Step 3: Cross multiply
    3,789.50x = 8,267 × 8,267
  4. Step 4: Simplify right side
    3,789.50x = 68,343,289
  5. Step 5: Solve for x
    x = 68,343,289/3,789.50
  6. Step 6: Final answer
    x = 18,034.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.