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Finding the Third Proportional to 237.75 and 355.69

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Solution

The third proportional to 237.75 and 355.69 is: 532.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.75 : 355.69 = 355.69 : x
  2. Step 2: Convert to fraction form
    237.75/355.69 = 355.69/x
  3. Step 3: Cross multiply
    237.75x = 355.69 × 355.69
  4. Step 4: Simplify right side
    237.75x = 126,513.60
  5. Step 5: Solve for x
    x = 126,513.60/237.75
  6. Step 6: Final answer
    x = 532.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.