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Finding the Fourth Proportional to 33,313.91, 49,946.16 and 20,163.20

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Solution

The fourth proportional to 33,313.91, 49,946.16 and 20,163.20 is: 30,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,313.91 : 49,946.16 = 20,163.20 : x
  2. Step 2: Convert to fraction form
    33,313.91/49,946.16 = 20,163.20/x
  3. Step 3: Cross multiply
    33,313.91x = 49,946.16 × 20,163.20
  4. Step 4: Simplify right side
    33,313.91x = 1,007,074,413.31
  5. Step 5: Solve for x
    x = 1,007,074,413.31/33,313.91
  6. Step 6: Final answer
    x = 30,229.85

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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.