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Finding the Third Proportional to 267 and 715.50

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Solution

The third proportional to 267 and 715.50 is: 1,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 715.50 = 715.50 : x
  2. Step 2: Convert to fraction form
    267/715.50 = 715.50/x
  3. Step 3: Cross multiply
    267x = 715.50 × 715.50
  4. Step 4: Simplify right side
    267x = 511,940.25
  5. Step 5: Solve for x
    x = 511,940.25/267
  6. Step 6: Final answer
    x = 1,917.38

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Why These Related Problems?

These problems maintain the same ratio (2.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.