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Finding the Fourth Proportional to 6,413.56, 8,850.74 and 3,761.01

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Solution

The fourth proportional to 6,413.56, 8,850.74 and 3,761.01 is: 5,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.56 : 8,850.74 = 3,761.01 : x
  2. Step 2: Convert to fraction form
    6,413.56/8,850.74 = 3,761.01/x
  3. Step 3: Cross multiply
    6,413.56x = 8,850.74 × 3,761.01
  4. Step 4: Simplify right side
    6,413.56x = 33,287,731.05
  5. Step 5: Solve for x
    x = 33,287,731.05/6,413.56
  6. Step 6: Final answer
    x = 5,190.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.