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Finding the Fourth Proportional to 11,292.53, 16,942.22 and 4,274.69

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Solution

The fourth proportional to 11,292.53, 16,942.22 and 4,274.69 is: 6,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.53 : 16,942.22 = 4,274.69 : x
  2. Step 2: Convert to fraction form
    11,292.53/16,942.22 = 4,274.69/x
  3. Step 3: Cross multiply
    11,292.53x = 16,942.22 × 4,274.69
  4. Step 4: Simplify right side
    11,292.53x = 72,422,717.04
  5. Step 5: Solve for x
    x = 72,422,717.04/11,292.53
  6. Step 6: Final answer
    x = 6,413.33

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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.