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Finding the Third Proportional to 211.38 and 295.75

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Solution

The third proportional to 211.38 and 295.75 is: 413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211.38 : 295.75 = 295.75 : x
  2. Step 2: Convert to fraction form
    211.38/295.75 = 295.75/x
  3. Step 3: Cross multiply
    211.38x = 295.75 × 295.75
  4. Step 4: Simplify right side
    211.38x = 87,468.06
  5. Step 5: Solve for x
    x = 87,468.06/211.38
  6. Step 6: Final answer
    x = 413.81

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.