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Finding the Fourth Proportional to 3,280.62, 4,922.49 and 3,009.98

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Solution

The fourth proportional to 3,280.62, 4,922.49 and 3,009.98 is: 4,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.62 : 4,922.49 = 3,009.98 : x
  2. Step 2: Convert to fraction form
    3,280.62/4,922.49 = 3,009.98/x
  3. Step 3: Cross multiply
    3,280.62x = 4,922.49 × 3,009.98
  4. Step 4: Simplify right side
    3,280.62x = 14,816,571.84
  5. Step 5: Solve for x
    x = 14,816,571.84/3,280.62
  6. Step 6: Final answer
    x = 4,516.39

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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.