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Finding the Fourth Proportional to 7,959.04, 11,942.88 and 3,855.04

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Solution

The fourth proportional to 7,959.04, 11,942.88 and 3,855.04 is: 5,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.04 : 11,942.88 = 3,855.04 : x
  2. Step 2: Convert to fraction form
    7,959.04/11,942.88 = 3,855.04/x
  3. Step 3: Cross multiply
    7,959.04x = 11,942.88 × 3,855.04
  4. Step 4: Simplify right side
    7,959.04x = 46,040,280.12
  5. Step 5: Solve for x
    x = 46,040,280.12/7,959.04
  6. Step 6: Final answer
    x = 5,784.65

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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.