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Finding the Fourth Proportional to 11,940.48, 17,899.20 and 6,099.84

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Solution

The fourth proportional to 11,940.48, 17,899.20 and 6,099.84 is: 9,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.48 : 17,899.20 = 6,099.84 : x
  2. Step 2: Convert to fraction form
    11,940.48/17,899.20 = 6,099.84/x
  3. Step 3: Cross multiply
    11,940.48x = 17,899.20 × 6,099.84
  4. Step 4: Simplify right side
    11,940.48x = 109,182,256.13
  5. Step 5: Solve for x
    x = 109,182,256.13/11,940.48
  6. Step 6: Final answer
    x = 9,143.87

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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.