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Finding the Fourth Proportional to 5,858.76, 8,789.32 and 2,161.01

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Solution

The fourth proportional to 5,858.76, 8,789.32 and 2,161.01 is: 3,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.76 : 8,789.32 = 2,161.01 : x
  2. Step 2: Convert to fraction form
    5,858.76/8,789.32 = 2,161.01/x
  3. Step 3: Cross multiply
    5,858.76x = 8,789.32 × 2,161.01
  4. Step 4: Simplify right side
    5,858.76x = 18,993,833.09
  5. Step 5: Solve for x
    x = 18,993,833.09/5,858.76
  6. Step 6: Final answer
    x = 3,241.95

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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.