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Finding the Third Proportional to 52 and 136.75

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Solution

The third proportional to 52 and 136.75 is: 359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52 : 136.75 = 136.75 : x
  2. Step 2: Convert to fraction form
    52/136.75 = 136.75/x
  3. Step 3: Cross multiply
    52x = 136.75 × 136.75
  4. Step 4: Simplify right side
    52x = 18,700.56
  5. Step 5: Solve for x
    x = 18,700.56/52
  6. Step 6: Final answer
    x = 359.63

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.