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Finding the Third Proportional to 20,033.25 and 31,143

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Solution

The third proportional to 20,033.25 and 31,143 is: 48,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.25 : 31,143 = 31,143 : x
  2. Step 2: Convert to fraction form
    20,033.25/31,143 = 31,143/x
  3. Step 3: Cross multiply
    20,033.25x = 31,143 × 31,143
  4. Step 4: Simplify right side
    20,033.25x = 969,886,449
  5. Step 5: Solve for x
    x = 969,886,449/20,033.25
  6. Step 6: Final answer
    x = 48,413.83

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.