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Finding the Third Proportional to 3,928 and 6,249

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Solution

The third proportional to 3,928 and 6,249 is: 9,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928 : 6,249 = 6,249 : x
  2. Step 2: Convert to fraction form
    3,928/6,249 = 6,249/x
  3. Step 3: Cross multiply
    3,928x = 6,249 × 6,249
  4. Step 4: Simplify right side
    3,928x = 39,050,001
  5. Step 5: Solve for x
    x = 39,050,001/3,928
  6. Step 6: Final answer
    x = 9,941.45

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.