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Finding the Third Proportional to 12,792 and 18,738

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Solution

The third proportional to 12,792 and 18,738 is: 27,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792 : 18,738 = 18,738 : x
  2. Step 2: Convert to fraction form
    12,792/18,738 = 18,738/x
  3. Step 3: Cross multiply
    12,792x = 18,738 × 18,738
  4. Step 4: Simplify right side
    12,792x = 351,112,644
  5. Step 5: Solve for x
    x = 351,112,644/12,792
  6. Step 6: Final answer
    x = 27,447.83

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.