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Finding the Third Proportional to 550 and 767

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Solution

The third proportional to 550 and 767 is: 1,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    550 : 767 = 767 : x
  2. Step 2: Convert to fraction form
    550/767 = 767/x
  3. Step 3: Cross multiply
    550x = 767 × 767
  4. Step 4: Simplify right side
    550x = 588,289
  5. Step 5: Solve for x
    x = 588,289/550
  6. Step 6: Final answer
    x = 1,069.62

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.