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Finding the Third Proportional to 4,147 and 8,450

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Solution

The third proportional to 4,147 and 8,450 is: 17,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147 : 8,450 = 8,450 : x
  2. Step 2: Convert to fraction form
    4,147/8,450 = 8,450/x
  3. Step 3: Cross multiply
    4,147x = 8,450 × 8,450
  4. Step 4: Simplify right side
    4,147x = 71,402,500
  5. Step 5: Solve for x
    x = 71,402,500/4,147
  6. Step 6: Final answer
    x = 17,217.87

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.