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Finding the Fourth Proportional to 18,268.20, 27,413.10 and 12,046.20

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Solution

The fourth proportional to 18,268.20, 27,413.10 and 12,046.20 is: 18,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.20 : 27,413.10 = 12,046.20 : x
  2. Step 2: Convert to fraction form
    18,268.20/27,413.10 = 12,046.20/x
  3. Step 3: Cross multiply
    18,268.20x = 27,413.10 × 12,046.20
  4. Step 4: Simplify right side
    18,268.20x = 330,223,685.22
  5. Step 5: Solve for x
    x = 330,223,685.22/18,268.20
  6. Step 6: Final answer
    x = 18,076.42

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1.5x scale

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.