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Finding the Third Proportional to 402 and 966

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Solution

The third proportional to 402 and 966 is: 2,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    402 : 966 = 966 : x
  2. Step 2: Convert to fraction form
    402/966 = 966/x
  3. Step 3: Cross multiply
    402x = 966 × 966
  4. Step 4: Simplify right side
    402x = 933,156
  5. Step 5: Solve for x
    x = 933,156/402
  6. Step 6: Final answer
    x = 2,321.28

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.