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Finding the Third Proportional to 3,858 and 9,231

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Solution

The third proportional to 3,858 and 9,231 is: 22,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858 : 9,231 = 9,231 : x
  2. Step 2: Convert to fraction form
    3,858/9,231 = 9,231/x
  3. Step 3: Cross multiply
    3,858x = 9,231 × 9,231
  4. Step 4: Simplify right side
    3,858x = 85,211,361
  5. Step 5: Solve for x
    x = 85,211,361/3,858
  6. Step 6: Final answer
    x = 22,086.93

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.