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Finding the Third Proportional to 195.75 and 429.75

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Solution

The third proportional to 195.75 and 429.75 is: 943.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.75 : 429.75 = 429.75 : x
  2. Step 2: Convert to fraction form
    195.75/429.75 = 429.75/x
  3. Step 3: Cross multiply
    195.75x = 429.75 × 429.75
  4. Step 4: Simplify right side
    195.75x = 184,685.06
  5. Step 5: Solve for x
    x = 184,685.06/195.75
  6. Step 6: Final answer
    x = 943.47

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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.