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Finding the Fourth Proportional to 3,559.76, 5,331.84 and 2,936.44

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Solution

The fourth proportional to 3,559.76, 5,331.84 and 2,936.44 is: 4,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.76 : 5,331.84 = 2,936.44 : x
  2. Step 2: Convert to fraction form
    3,559.76/5,331.84 = 2,936.44/x
  3. Step 3: Cross multiply
    3,559.76x = 5,331.84 × 2,936.44
  4. Step 4: Simplify right side
    3,559.76x = 15,656,628.25
  5. Step 5: Solve for x
    x = 15,656,628.25/3,559.76
  6. Step 6: Final answer
    x = 4,398.23

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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.