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Finding the Third Proportional to 197.75 and 435

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Solution

The third proportional to 197.75 and 435 is: 956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.75 : 435 = 435 : x
  2. Step 2: Convert to fraction form
    197.75/435 = 435/x
  3. Step 3: Cross multiply
    197.75x = 435 × 435
  4. Step 4: Simplify right side
    197.75x = 189,225
  5. Step 5: Solve for x
    x = 189,225/197.75
  6. Step 6: Final answer
    x = 956.89

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.