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Finding the Third Proportional to 8,226 and 12,393

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Solution

The third proportional to 8,226 and 12,393 is: 18,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226 : 12,393 = 12,393 : x
  2. Step 2: Convert to fraction form
    8,226/12,393 = 12,393/x
  3. Step 3: Cross multiply
    8,226x = 12,393 × 12,393
  4. Step 4: Simplify right side
    8,226x = 153,586,449
  5. Step 5: Solve for x
    x = 153,586,449/8,226
  6. Step 6: Final answer
    x = 18,670.85

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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.