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Finding the Third Proportional to 195.75 and 292.78

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Solution

The third proportional to 195.75 and 292.78 is: 437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.75 : 292.78 = 292.78 : x
  2. Step 2: Convert to fraction form
    195.75/292.78 = 292.78/x
  3. Step 3: Cross multiply
    195.75x = 292.78 × 292.78
  4. Step 4: Simplify right side
    195.75x = 85,720.86
  5. Step 5: Solve for x
    x = 85,720.86/195.75
  6. Step 6: Final answer
    x = 437.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.