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Finding the Third Proportional to 197.06 and 423.75

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Solution

The third proportional to 197.06 and 423.75 is: 911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.06 : 423.75 = 423.75 : x
  2. Step 2: Convert to fraction form
    197.06/423.75 = 423.75/x
  3. Step 3: Cross multiply
    197.06x = 423.75 × 423.75
  4. Step 4: Simplify right side
    197.06x = 179,564.06
  5. Step 5: Solve for x
    x = 179,564.06/197.06
  6. Step 6: Final answer
    x = 911.20

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.