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Finding the Third Proportional to 18,513.75 and 28,675.13

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Solution

The third proportional to 18,513.75 and 28,675.13 is: 44,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.75 : 28,675.13 = 28,675.13 : x
  2. Step 2: Convert to fraction form
    18,513.75/28,675.13 = 28,675.13/x
  3. Step 3: Cross multiply
    18,513.75x = 28,675.13 × 28,675.13
  4. Step 4: Simplify right side
    18,513.75x = 822,262,793.77
  5. Step 5: Solve for x
    x = 822,262,793.77/18,513.75
  6. Step 6: Final answer
    x = 44,413.63

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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.