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Finding the Third Proportional to 3,914 and 9,230

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Solution

The third proportional to 3,914 and 9,230 is: 21,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914 : 9,230 = 9,230 : x
  2. Step 2: Convert to fraction form
    3,914/9,230 = 9,230/x
  3. Step 3: Cross multiply
    3,914x = 9,230 × 9,230
  4. Step 4: Simplify right side
    3,914x = 85,192,900
  5. Step 5: Solve for x
    x = 85,192,900/3,914
  6. Step 6: Final answer
    x = 21,766.20

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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.