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Finding the Third Proportional to 84.75 and 193.13

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Solution

The third proportional to 84.75 and 193.13 is: 440.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.75 : 193.13 = 193.13 : x
  2. Step 2: Convert to fraction form
    84.75/193.13 = 193.13/x
  3. Step 3: Cross multiply
    84.75x = 193.13 × 193.13
  4. Step 4: Simplify right side
    84.75x = 37,297.27
  5. Step 5: Solve for x
    x = 37,297.27/84.75
  6. Step 6: Final answer
    x = 440.09

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.