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Finding the Third Proportional to 794 and 1,234

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Solution

The third proportional to 794 and 1,234 is: 1,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    794 : 1,234 = 1,234 : x
  2. Step 2: Convert to fraction form
    794/1,234 = 1,234/x
  3. Step 3: Cross multiply
    794x = 1,234 × 1,234
  4. Step 4: Simplify right side
    794x = 1,522,756
  5. Step 5: Solve for x
    x = 1,522,756/794
  6. Step 6: Final answer
    x = 1,917.83

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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.