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Finding the Third Proportional to 225.25 and 484.75

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Solution

The third proportional to 225.25 and 484.75 is: 1,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.25 : 484.75 = 484.75 : x
  2. Step 2: Convert to fraction form
    225.25/484.75 = 484.75/x
  3. Step 3: Cross multiply
    225.25x = 484.75 × 484.75
  4. Step 4: Simplify right side
    225.25x = 234,982.56
  5. Step 5: Solve for x
    x = 234,982.56/225.25
  6. Step 6: Final answer
    x = 1,043.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.