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Finding the Third Proportional to 793.50 and 1,661

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Solution

The third proportional to 793.50 and 1,661 is: 3,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.50 : 1,661 = 1,661 : x
  2. Step 2: Convert to fraction form
    793.50/1,661 = 1,661/x
  3. Step 3: Cross multiply
    793.50x = 1,661 × 1,661
  4. Step 4: Simplify right side
    793.50x = 2,758,921
  5. Step 5: Solve for x
    x = 2,758,921/793.50
  6. Step 6: Final answer
    x = 3,476.90

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.