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Finding the Third Proportional to 220.88 and 475.50

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Solution

The third proportional to 220.88 and 475.50 is: 1,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.88 : 475.50 = 475.50 : x
  2. Step 2: Convert to fraction form
    220.88/475.50 = 475.50/x
  3. Step 3: Cross multiply
    220.88x = 475.50 × 475.50
  4. Step 4: Simplify right side
    220.88x = 226,100.25
  5. Step 5: Solve for x
    x = 226,100.25/220.88
  6. Step 6: Final answer
    x = 1,023.66

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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.