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Finding the Third Proportional to 782 and 958

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Solution

The third proportional to 782 and 958 is: 1,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    782 : 958 = 958 : x
  2. Step 2: Convert to fraction form
    782/958 = 958/x
  3. Step 3: Cross multiply
    782x = 958 × 958
  4. Step 4: Simplify right side
    782x = 917,764
  5. Step 5: Solve for x
    x = 917,764/782
  6. Step 6: Final answer
    x = 1,173.61

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.