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Finding the Third Proportional to 350.50 and 769

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Solution

The third proportional to 350.50 and 769 is: 1,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.50 : 769 = 769 : x
  2. Step 2: Convert to fraction form
    350.50/769 = 769/x
  3. Step 3: Cross multiply
    350.50x = 769 × 769
  4. Step 4: Simplify right side
    350.50x = 591,361
  5. Step 5: Solve for x
    x = 591,361/350.50
  6. Step 6: Final answer
    x = 1,687.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.