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Finding the Fourth Proportional to 6,992.94, 10,479.51 and 3,874.38

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Solution

The fourth proportional to 6,992.94, 10,479.51 and 3,874.38 is: 5,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.94 : 10,479.51 = 3,874.38 : x
  2. Step 2: Convert to fraction form
    6,992.94/10,479.51 = 3,874.38/x
  3. Step 3: Cross multiply
    6,992.94x = 10,479.51 × 3,874.38
  4. Step 4: Simplify right side
    6,992.94x = 40,601,603.95
  5. Step 5: Solve for x
    x = 40,601,603.95/6,992.94
  6. Step 6: Final answer
    x = 5,806.08

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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.