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Finding the Third Proportional to 196.75 and 211.75

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Solution

The third proportional to 196.75 and 211.75 is: 227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.75 : 211.75 = 211.75 : x
  2. Step 2: Convert to fraction form
    196.75/211.75 = 211.75/x
  3. Step 3: Cross multiply
    196.75x = 211.75 × 211.75
  4. Step 4: Simplify right side
    196.75x = 44,838.06
  5. Step 5: Solve for x
    x = 44,838.06/196.75
  6. Step 6: Final answer
    x = 227.89

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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.