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Finding the Third Proportional to 996.75 and 1,131.75

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Solution

The third proportional to 996.75 and 1,131.75 is: 1,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.75 : 1,131.75 = 1,131.75 : x
  2. Step 2: Convert to fraction form
    996.75/1,131.75 = 1,131.75/x
  3. Step 3: Cross multiply
    996.75x = 1,131.75 × 1,131.75
  4. Step 4: Simplify right side
    996.75x = 1,280,858.06
  5. Step 5: Solve for x
    x = 1,280,858.06/996.75
  6. Step 6: Final answer
    x = 1,285.03

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.