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Finding the Fourth Proportional to 3,222.54, 4,448.18 and 1,964.41

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Solution

The fourth proportional to 3,222.54, 4,448.18 and 1,964.41 is: 2,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.54 : 4,448.18 = 1,964.41 : x
  2. Step 2: Convert to fraction form
    3,222.54/4,448.18 = 1,964.41/x
  3. Step 3: Cross multiply
    3,222.54x = 4,448.18 × 1,964.41
  4. Step 4: Simplify right side
    3,222.54x = 8,738,049.27
  5. Step 5: Solve for x
    x = 8,738,049.27/3,222.54
  6. Step 6: Final answer
    x = 2,711.54

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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.