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Finding the Third Proportional to 641.50 and 962

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Solution

The third proportional to 641.50 and 962 is: 1,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.50 : 962 = 962 : x
  2. Step 2: Convert to fraction form
    641.50/962 = 962/x
  3. Step 3: Cross multiply
    641.50x = 962 × 962
  4. Step 4: Simplify right side
    641.50x = 925,444
  5. Step 5: Solve for x
    x = 925,444/641.50
  6. Step 6: Final answer
    x = 1,442.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.