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Finding the Fourth Proportional to 18,498.65, 27,752.12 and 5,352.05

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Solution

The fourth proportional to 18,498.65, 27,752.12 and 5,352.05 is: 8,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.65 : 27,752.12 = 5,352.05 : x
  2. Step 2: Convert to fraction form
    18,498.65/27,752.12 = 5,352.05/x
  3. Step 3: Cross multiply
    18,498.65x = 27,752.12 × 5,352.05
  4. Step 4: Simplify right side
    18,498.65x = 148,530,568.33
  5. Step 5: Solve for x
    x = 148,530,568.33/18,498.65
  6. Step 6: Final answer
    x = 8,029.27

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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.