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Finding the Third Proportional to 774 and 1,166

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Solution

The third proportional to 774 and 1,166 is: 1,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    774 : 1,166 = 1,166 : x
  2. Step 2: Convert to fraction form
    774/1,166 = 1,166/x
  3. Step 3: Cross multiply
    774x = 1,166 × 1,166
  4. Step 4: Simplify right side
    774x = 1,359,556
  5. Step 5: Solve for x
    x = 1,359,556/774
  6. Step 6: Final answer
    x = 1,756.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.