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Finding the Third Proportional to 220.75 and 466.75

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Solution

The third proportional to 220.75 and 466.75 is: 986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.75 : 466.75 = 466.75 : x
  2. Step 2: Convert to fraction form
    220.75/466.75 = 466.75/x
  3. Step 3: Cross multiply
    220.75x = 466.75 × 466.75
  4. Step 4: Simplify right side
    220.75x = 217,855.56
  5. Step 5: Solve for x
    x = 217,855.56/220.75
  6. Step 6: Final answer
    x = 986.89

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.