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Finding the Fourth Proportional to 3,388.77, 5,081.26 and 1,048.11

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Solution

The fourth proportional to 3,388.77, 5,081.26 and 1,048.11 is: 1,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.77 : 5,081.26 = 1,048.11 : x
  2. Step 2: Convert to fraction form
    3,388.77/5,081.26 = 1,048.11/x
  3. Step 3: Cross multiply
    3,388.77x = 5,081.26 × 1,048.11
  4. Step 4: Simplify right side
    3,388.77x = 5,325,719.42
  5. Step 5: Solve for x
    x = 5,325,719.42/3,388.77
  6. Step 6: Final answer
    x = 1,571.58

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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.