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Finding the Third Proportional to 197.72 and 433.69

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Solution

The third proportional to 197.72 and 433.69 is: 951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.72 : 433.69 = 433.69 : x
  2. Step 2: Convert to fraction form
    197.72/433.69 = 433.69/x
  3. Step 3: Cross multiply
    197.72x = 433.69 × 433.69
  4. Step 4: Simplify right side
    197.72x = 188,084.85
  5. Step 5: Solve for x
    x = 188,084.85/197.72
  6. Step 6: Final answer
    x = 951.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.