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Finding the Fourth Proportional to 7,940.33, 11,912.16 and 2,394.08

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Solution

The fourth proportional to 7,940.33, 11,912.16 and 2,394.08 is: 3,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.33 : 11,912.16 = 2,394.08 : x
  2. Step 2: Convert to fraction form
    7,940.33/11,912.16 = 2,394.08/x
  3. Step 3: Cross multiply
    7,940.33x = 11,912.16 × 2,394.08
  4. Step 4: Simplify right side
    7,940.33x = 28,518,664.01
  5. Step 5: Solve for x
    x = 28,518,664.01/7,940.33
  6. Step 6: Final answer
    x = 3,591.62

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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.