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Finding the Third Proportional to 716.50 and 1,149

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Solution

The third proportional to 716.50 and 1,149 is: 1,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.50 : 1,149 = 1,149 : x
  2. Step 2: Convert to fraction form
    716.50/1,149 = 1,149/x
  3. Step 3: Cross multiply
    716.50x = 1,149 × 1,149
  4. Step 4: Simplify right side
    716.50x = 1,320,201
  5. Step 5: Solve for x
    x = 1,320,201/716.50
  6. Step 6: Final answer
    x = 1,842.57

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.