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Finding the Third Proportional to 722 and 965

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Solution

The third proportional to 722 and 965 is: 1,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    722 : 965 = 965 : x
  2. Step 2: Convert to fraction form
    722/965 = 965/x
  3. Step 3: Cross multiply
    722x = 965 × 965
  4. Step 4: Simplify right side
    722x = 931,225
  5. Step 5: Solve for x
    x = 931,225/722
  6. Step 6: Final answer
    x = 1,289.79

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.