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Finding the Fourth Proportional to 15,919.52, 23,879.01 and 5,531

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Solution

The fourth proportional to 15,919.52, 23,879.01 and 5,531 is: 8,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.52 : 23,879.01 = 5,531 : x
  2. Step 2: Convert to fraction form
    15,919.52/23,879.01 = 5,531/x
  3. Step 3: Cross multiply
    15,919.52x = 23,879.01 × 5,531
  4. Step 4: Simplify right side
    15,919.52x = 132,074,804.31
  5. Step 5: Solve for x
    x = 132,074,804.31/15,919.52
  6. Step 6: Final answer
    x = 8,296.41

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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.