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Finding the Third Proportional to 2,103.75 and 2,679.75

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Solution

The third proportional to 2,103.75 and 2,679.75 is: 3,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.75 : 2,679.75 = 2,679.75 : x
  2. Step 2: Convert to fraction form
    2,103.75/2,679.75 = 2,679.75/x
  3. Step 3: Cross multiply
    2,103.75x = 2,679.75 × 2,679.75
  4. Step 4: Simplify right side
    2,103.75x = 7,181,060.06
  5. Step 5: Solve for x
    x = 7,181,060.06/2,103.75
  6. Step 6: Final answer
    x = 3,413.46

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.