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Finding the Third Proportional to 3,413.81 and 7,136.44

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Solution

The third proportional to 3,413.81 and 7,136.44 is: 14,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.81 : 7,136.44 = 7,136.44 : x
  2. Step 2: Convert to fraction form
    3,413.81/7,136.44 = 7,136.44/x
  3. Step 3: Cross multiply
    3,413.81x = 7,136.44 × 7,136.44
  4. Step 4: Simplify right side
    3,413.81x = 50,928,740.19
  5. Step 5: Solve for x
    x = 50,928,740.19/3,413.81
  6. Step 6: Final answer
    x = 14,918.44

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.