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Finding the Third Proportional to 4,147 and 8,329

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Solution

The third proportional to 4,147 and 8,329 is: 16,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147 : 8,329 = 8,329 : x
  2. Step 2: Convert to fraction form
    4,147/8,329 = 8,329/x
  3. Step 3: Cross multiply
    4,147x = 8,329 × 8,329
  4. Step 4: Simplify right side
    4,147x = 69,372,241
  5. Step 5: Solve for x
    x = 69,372,241/4,147
  6. Step 6: Final answer
    x = 16,728.30

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.