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Finding the Fourth Proportional to 7,796.10, 11,698.10 and 3,413.60

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Solution

The fourth proportional to 7,796.10, 11,698.10 and 3,413.60 is: 5,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.10 : 11,698.10 = 3,413.60 : x
  2. Step 2: Convert to fraction form
    7,796.10/11,698.10 = 3,413.60/x
  3. Step 3: Cross multiply
    7,796.10x = 11,698.10 × 3,413.60
  4. Step 4: Simplify right side
    7,796.10x = 39,932,634.16
  5. Step 5: Solve for x
    x = 39,932,634.16/7,796.10
  6. Step 6: Final answer
    x = 5,122.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.