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Finding the Third Proportional to 236.50 and 355.50

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Solution

The third proportional to 236.50 and 355.50 is: 534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 355.50 = 355.50 : x
  2. Step 2: Convert to fraction form
    236.50/355.50 = 355.50/x
  3. Step 3: Cross multiply
    236.50x = 355.50 × 355.50
  4. Step 4: Simplify right side
    236.50x = 126,380.25
  5. Step 5: Solve for x
    x = 126,380.25/236.50
  6. Step 6: Final answer
    x = 534.38

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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.