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Finding the Fourth Proportional to 18,491.44, 27,736.08 and 5,343.52

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Solution

The fourth proportional to 18,491.44, 27,736.08 and 5,343.52 is: 8,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.44 : 27,736.08 = 5,343.52 : x
  2. Step 2: Convert to fraction form
    18,491.44/27,736.08 = 5,343.52/x
  3. Step 3: Cross multiply
    18,491.44x = 27,736.08 × 5,343.52
  4. Step 4: Simplify right side
    18,491.44x = 148,208,298.20
  5. Step 5: Solve for x
    x = 148,208,298.20/18,491.44
  6. Step 6: Final answer
    x = 8,014.97

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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.