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Finding the Fourth Proportional to 8,940.76, 13,413.56 and 2,700.98

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Solution

The fourth proportional to 8,940.76, 13,413.56 and 2,700.98 is: 4,052.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.76 : 13,413.56 = 2,700.98 : x
  2. Step 2: Convert to fraction form
    8,940.76/13,413.56 = 2,700.98/x
  3. Step 3: Cross multiply
    8,940.76x = 13,413.56 × 2,700.98
  4. Step 4: Simplify right side
    8,940.76x = 36,229,690.22
  5. Step 5: Solve for x
    x = 36,229,690.22/8,940.76
  6. Step 6: Final answer
    x = 4,052.19

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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.