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Finding the Third Proportional to 4,392.75 and 9,413.50

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Solution

The third proportional to 4,392.75 and 9,413.50 is: 20,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.75 : 9,413.50 = 9,413.50 : x
  2. Step 2: Convert to fraction form
    4,392.75/9,413.50 = 9,413.50/x
  3. Step 3: Cross multiply
    4,392.75x = 9,413.50 × 9,413.50
  4. Step 4: Simplify right side
    4,392.75x = 88,613,982.25
  5. Step 5: Solve for x
    x = 88,613,982.25/4,392.75
  6. Step 6: Final answer
    x = 20,172.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.