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Finding the Fourth Proportional to 57,824.67, 86,718.42 and 18,372.56

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Solution

The fourth proportional to 57,824.67, 86,718.42 and 18,372.56 is: 27,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,824.67 : 86,718.42 = 18,372.56 : x
  2. Step 2: Convert to fraction form
    57,824.67/86,718.42 = 18,372.56/x
  3. Step 3: Cross multiply
    57,824.67x = 86,718.42 × 18,372.56
  4. Step 4: Simplify right side
    57,824.67x = 1,593,238,940.96
  5. Step 5: Solve for x
    x = 1,593,238,940.96/57,824.67
  6. Step 6: Final answer
    x = 27,552.93

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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.