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Finding the Third Proportional to 4,631 and 8,238

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Solution

The third proportional to 4,631 and 8,238 is: 14,654.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631 : 8,238 = 8,238 : x
  2. Step 2: Convert to fraction form
    4,631/8,238 = 8,238/x
  3. Step 3: Cross multiply
    4,631x = 8,238 × 8,238
  4. Step 4: Simplify right side
    4,631x = 67,864,644
  5. Step 5: Solve for x
    x = 67,864,644/4,631
  6. Step 6: Final answer
    x = 14,654.43

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.