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Finding the Third Proportional to 447.19 and 963.56

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Solution

The third proportional to 447.19 and 963.56 is: 2,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.19 : 963.56 = 963.56 : x
  2. Step 2: Convert to fraction form
    447.19/963.56 = 963.56/x
  3. Step 3: Cross multiply
    447.19x = 963.56 × 963.56
  4. Step 4: Simplify right side
    447.19x = 928,452.69
  5. Step 5: Solve for x
    x = 928,452.69/447.19
  6. Step 6: Final answer
    x = 2,076.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.