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Finding the Third Proportional to 165.50 and 353

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Solution

The third proportional to 165.50 and 353 is: 752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.50 : 353 = 353 : x
  2. Step 2: Convert to fraction form
    165.50/353 = 353/x
  3. Step 3: Cross multiply
    165.50x = 353 × 353
  4. Step 4: Simplify right side
    165.50x = 124,609
  5. Step 5: Solve for x
    x = 124,609/165.50
  6. Step 6: Final answer
    x = 752.92

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.