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Finding the Fourth Proportional to 56,294.73, 84,443.11 and 18,847.82

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Solution

The fourth proportional to 56,294.73, 84,443.11 and 18,847.82 is: 28,272.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,294.73 : 84,443.11 = 18,847.82 : x
  2. Step 2: Convert to fraction form
    56,294.73/84,443.11 = 18,847.82/x
  3. Step 3: Cross multiply
    56,294.73x = 84,443.11 × 18,847.82
  4. Step 4: Simplify right side
    56,294.73x = 1,591,568,537.52
  5. Step 5: Solve for x
    x = 1,591,568,537.52/56,294.73
  6. Step 6: Final answer
    x = 28,272.07

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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.