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Finding the Fourth Proportional to 3,369.70, 5,041.00 and 2,912.39

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Solution

The fourth proportional to 3,369.70, 5,041.00 and 2,912.39 is: 4,356.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.70 : 5,041.00 = 2,912.39 : x
  2. Step 2: Convert to fraction form
    3,369.70/5,041.00 = 2,912.39/x
  3. Step 3: Cross multiply
    3,369.70x = 5,041.00 × 2,912.39
  4. Step 4: Simplify right side
    3,369.70x = 14,681,355.33
  5. Step 5: Solve for x
    x = 14,681,355.33/3,369.70
  6. Step 6: Final answer
    x = 4,356.87

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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.