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Finding the Third Proportional to 481.25 and 775

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Solution

The third proportional to 481.25 and 775 is: 1,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.25 : 775 = 775 : x
  2. Step 2: Convert to fraction form
    481.25/775 = 775/x
  3. Step 3: Cross multiply
    481.25x = 775 × 775
  4. Step 4: Simplify right side
    481.25x = 600,625
  5. Step 5: Solve for x
    x = 600,625/481.25
  6. Step 6: Final answer
    x = 1,248.05

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.