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Finding the Third Proportional to 636 and 963

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Solution

The third proportional to 636 and 963 is: 1,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636 : 963 = 963 : x
  2. Step 2: Convert to fraction form
    636/963 = 963/x
  3. Step 3: Cross multiply
    636x = 963 × 963
  4. Step 4: Simplify right side
    636x = 927,369
  5. Step 5: Solve for x
    x = 927,369/636
  6. Step 6: Final answer
    x = 1,458.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.