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Finding the Third Proportional to 165.50 and 188

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Solution

The third proportional to 165.50 and 188 is: 213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.50 : 188 = 188 : x
  2. Step 2: Convert to fraction form
    165.50/188 = 188/x
  3. Step 3: Cross multiply
    165.50x = 188 × 188
  4. Step 4: Simplify right side
    165.50x = 35,344
  5. Step 5: Solve for x
    x = 35,344/165.50
  6. Step 6: Final answer
    x = 213.56

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.