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Finding the Third Proportional to 381.88 and 464.75

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Solution

The third proportional to 381.88 and 464.75 is: 565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.88 : 464.75 = 464.75 : x
  2. Step 2: Convert to fraction form
    381.88/464.75 = 464.75/x
  3. Step 3: Cross multiply
    381.88x = 464.75 × 464.75
  4. Step 4: Simplify right side
    381.88x = 215,992.56
  5. Step 5: Solve for x
    x = 215,992.56/381.88
  6. Step 6: Final answer
    x = 565.61

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.