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Finding the Third Proportional to 195.94 and 431.06

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Solution

The third proportional to 195.94 and 431.06 is: 948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.94 : 431.06 = 431.06 : x
  2. Step 2: Convert to fraction form
    195.94/431.06 = 431.06/x
  3. Step 3: Cross multiply
    195.94x = 431.06 × 431.06
  4. Step 4: Simplify right side
    195.94x = 185,814.88
  5. Step 5: Solve for x
    x = 185,814.88/195.94
  6. Step 6: Final answer
    x = 948.34

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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.