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Finding the Fourth Proportional to 2,736.79, 4,103.81 and 1,350.78

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Solution

The fourth proportional to 2,736.79, 4,103.81 and 1,350.78 is: 2,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.79 : 4,103.81 = 1,350.78 : x
  2. Step 2: Convert to fraction form
    2,736.79/4,103.81 = 1,350.78/x
  3. Step 3: Cross multiply
    2,736.79x = 4,103.81 × 1,350.78
  4. Step 4: Simplify right side
    2,736.79x = 5,543,334.99
  5. Step 5: Solve for x
    x = 5,543,334.99/2,736.79
  6. Step 6: Final answer
    x = 2,025.49

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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.