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Finding the Fourth Proportional to 5,927.80, 8,891.63 and 3,427.39

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Solution

The fourth proportional to 5,927.80, 8,891.63 and 3,427.39 is: 5,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,927.80 : 8,891.63 = 3,427.39 : x
  2. Step 2: Convert to fraction form
    5,927.80/8,891.63 = 3,427.39/x
  3. Step 3: Cross multiply
    5,927.80x = 8,891.63 × 3,427.39
  4. Step 4: Simplify right side
    5,927.80x = 30,475,083.75
  5. Step 5: Solve for x
    x = 30,475,083.75/5,927.80
  6. Step 6: Final answer
    x = 5,141.04

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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.