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Finding the Third Proportional to 267 and 360.50

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Solution

The third proportional to 267 and 360.50 is: 486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 360.50 = 360.50 : x
  2. Step 2: Convert to fraction form
    267/360.50 = 360.50/x
  3. Step 3: Cross multiply
    267x = 360.50 × 360.50
  4. Step 4: Simplify right side
    267x = 129,960.25
  5. Step 5: Solve for x
    x = 129,960.25/267
  6. Step 6: Final answer
    x = 486.74

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.