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Finding the Fourth Proportional to 8,392.38, 12,589.95 and 2,846.38

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Solution

The fourth proportional to 8,392.38, 12,589.95 and 2,846.38 is: 4,270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.38 : 12,589.95 = 2,846.38 : x
  2. Step 2: Convert to fraction form
    8,392.38/12,589.95 = 2,846.38/x
  3. Step 3: Cross multiply
    8,392.38x = 12,589.95 × 2,846.38
  4. Step 4: Simplify right side
    8,392.38x = 35,835,718.93
  5. Step 5: Solve for x
    x = 35,835,718.93/8,392.38
  6. Step 6: Final answer
    x = 4,270.03

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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.