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Finding the Third Proportional to 193.13 and 216.75

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Solution

The third proportional to 193.13 and 216.75 is: 243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.13 : 216.75 = 216.75 : x
  2. Step 2: Convert to fraction form
    193.13/216.75 = 216.75/x
  3. Step 3: Cross multiply
    193.13x = 216.75 × 216.75
  4. Step 4: Simplify right side
    193.13x = 46,980.56
  5. Step 5: Solve for x
    x = 46,980.56/193.13
  6. Step 6: Final answer
    x = 243.27

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.