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Finding the Fourth Proportional to 8,891.44, 12,260.64 and 6,238

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Solution

The fourth proportional to 8,891.44, 12,260.64 and 6,238 is: 8,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.44 : 12,260.64 = 6,238 : x
  2. Step 2: Convert to fraction form
    8,891.44/12,260.64 = 6,238/x
  3. Step 3: Cross multiply
    8,891.44x = 12,260.64 × 6,238
  4. Step 4: Simplify right side
    8,891.44x = 76,481,872.32
  5. Step 5: Solve for x
    x = 76,481,872.32/8,891.44
  6. Step 6: Final answer
    x = 8,601.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.