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Finding the Third Proportional to 195.94 and 422.63

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Solution

The third proportional to 195.94 and 422.63 is: 911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.94 : 422.63 = 422.63 : x
  2. Step 2: Convert to fraction form
    195.94/422.63 = 422.63/x
  3. Step 3: Cross multiply
    195.94x = 422.63 × 422.63
  4. Step 4: Simplify right side
    195.94x = 178,611.89
  5. Step 5: Solve for x
    x = 178,611.89/195.94
  6. Step 6: Final answer
    x = 911.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.