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Finding the Third Proportional to 5,249 and 8,126

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Solution

The third proportional to 5,249 and 8,126 is: 12,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249 : 8,126 = 8,126 : x
  2. Step 2: Convert to fraction form
    5,249/8,126 = 8,126/x
  3. Step 3: Cross multiply
    5,249x = 8,126 × 8,126
  4. Step 4: Simplify right side
    5,249x = 66,031,876
  5. Step 5: Solve for x
    x = 66,031,876/5,249
  6. Step 6: Final answer
    x = 12,579.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.