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Finding the Fourth Proportional to 7,413.80, 11,067.84 and 7,154.24

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Solution

The fourth proportional to 7,413.80, 11,067.84 and 7,154.24 is: 10,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.80 : 11,067.84 = 7,154.24 : x
  2. Step 2: Convert to fraction form
    7,413.80/11,067.84 = 7,154.24/x
  3. Step 3: Cross multiply
    7,413.80x = 11,067.84 × 7,154.24
  4. Step 4: Simplify right side
    7,413.80x = 79,181,928.30
  5. Step 5: Solve for x
    x = 79,181,928.30/7,413.80
  6. Step 6: Final answer
    x = 10,680.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.