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Finding the Third Proportional to 755 and 963

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Solution

The third proportional to 755 and 963 is: 1,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    755 : 963 = 963 : x
  2. Step 2: Convert to fraction form
    755/963 = 963/x
  3. Step 3: Cross multiply
    755x = 963 × 963
  4. Step 4: Simplify right side
    755x = 927,369
  5. Step 5: Solve for x
    x = 927,369/755
  6. Step 6: Final answer
    x = 1,228.30

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.