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Finding the Third Proportional to 966.75 and 1,380.75

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Solution

The third proportional to 966.75 and 1,380.75 is: 1,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.75 : 1,380.75 = 1,380.75 : x
  2. Step 2: Convert to fraction form
    966.75/1,380.75 = 1,380.75/x
  3. Step 3: Cross multiply
    966.75x = 1,380.75 × 1,380.75
  4. Step 4: Simplify right side
    966.75x = 1,906,470.56
  5. Step 5: Solve for x
    x = 1,906,470.56/966.75
  6. Step 6: Final answer
    x = 1,972.04

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.