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Finding the Fourth Proportional to 20,163.04, 30,246 and 5,371.92

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Solution

The fourth proportional to 20,163.04, 30,246 and 5,371.92 is: 8,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.04 : 30,246 = 5,371.92 : x
  2. Step 2: Convert to fraction form
    20,163.04/30,246 = 5,371.92/x
  3. Step 3: Cross multiply
    20,163.04x = 30,246 × 5,371.92
  4. Step 4: Simplify right side
    20,163.04x = 162,479,092.32
  5. Step 5: Solve for x
    x = 162,479,092.32/20,163.04
  6. Step 6: Final answer
    x = 8,058.26

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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.