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Finding the Fourth Proportional to 18,493.44, 27,739.08 and 5,345.52

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Solution

The fourth proportional to 18,493.44, 27,739.08 and 5,345.52 is: 8,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.44 : 27,739.08 = 5,345.52 : x
  2. Step 2: Convert to fraction form
    18,493.44/27,739.08 = 5,345.52/x
  3. Step 3: Cross multiply
    18,493.44x = 27,739.08 × 5,345.52
  4. Step 4: Simplify right side
    18,493.44x = 148,279,806.92
  5. Step 5: Solve for x
    x = 148,279,806.92/18,493.44
  6. Step 6: Final answer
    x = 8,017.97

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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.