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Finding the Third Proportional to 4,387 and 6,626

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Solution

The third proportional to 4,387 and 6,626 is: 10,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387 : 6,626 = 6,626 : x
  2. Step 2: Convert to fraction form
    4,387/6,626 = 6,626/x
  3. Step 3: Cross multiply
    4,387x = 6,626 × 6,626
  4. Step 4: Simplify right side
    4,387x = 43,903,876
  5. Step 5: Solve for x
    x = 43,903,876/4,387
  6. Step 6: Final answer
    x = 10,007.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.