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Finding the Third Proportional to 767 and 905

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Solution

The third proportional to 767 and 905 is: 1,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    767 : 905 = 905 : x
  2. Step 2: Convert to fraction form
    767/905 = 905/x
  3. Step 3: Cross multiply
    767x = 905 × 905
  4. Step 4: Simplify right side
    767x = 819,025
  5. Step 5: Solve for x
    x = 819,025/767
  6. Step 6: Final answer
    x = 1,067.83

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These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.