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Finding the Third Proportional to 208.25 and 225.50

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Solution

The third proportional to 208.25 and 225.50 is: 244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208.25 : 225.50 = 225.50 : x
  2. Step 2: Convert to fraction form
    208.25/225.50 = 225.50/x
  3. Step 3: Cross multiply
    208.25x = 225.50 × 225.50
  4. Step 4: Simplify right side
    208.25x = 50,850.25
  5. Step 5: Solve for x
    x = 50,850.25/208.25
  6. Step 6: Final answer
    x = 244.18

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.