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Finding the Fourth Proportional to 5,891.17, 8,826.37 and 3,111.72

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Solution

The fourth proportional to 5,891.17, 8,826.37 and 3,111.72 is: 4,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.17 : 8,826.37 = 3,111.72 : x
  2. Step 2: Convert to fraction form
    5,891.17/8,826.37 = 3,111.72/x
  3. Step 3: Cross multiply
    5,891.17x = 8,826.37 × 3,111.72
  4. Step 4: Simplify right side
    5,891.17x = 27,465,192.06
  5. Step 5: Solve for x
    x = 27,465,192.06/5,891.17
  6. Step 6: Final answer
    x = 4,662.09

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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.