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Finding the Third Proportional to 793.97 and 1,021.78

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Solution

The third proportional to 793.97 and 1,021.78 is: 1,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.97 : 1,021.78 = 1,021.78 : x
  2. Step 2: Convert to fraction form
    793.97/1,021.78 = 1,021.78/x
  3. Step 3: Cross multiply
    793.97x = 1,021.78 × 1,021.78
  4. Step 4: Simplify right side
    793.97x = 1,044,036.92
  5. Step 5: Solve for x
    x = 1,044,036.92/793.97
  6. Step 6: Final answer
    x = 1,314.96

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.