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Finding the Third Proportional to 1,201.50 and 1,718

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Solution

The third proportional to 1,201.50 and 1,718 is: 2,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.50 : 1,718 = 1,718 : x
  2. Step 2: Convert to fraction form
    1,201.50/1,718 = 1,718/x
  3. Step 3: Cross multiply
    1,201.50x = 1,718 × 1,718
  4. Step 4: Simplify right side
    1,201.50x = 2,951,524
  5. Step 5: Solve for x
    x = 2,951,524/1,201.50
  6. Step 6: Final answer
    x = 2,456.53

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.