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Finding the Fourth Proportional to 57,824.29, 86,717.86 and 18,372.18

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Solution

The fourth proportional to 57,824.29, 86,717.86 and 18,372.18 is: 27,552.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,824.29 : 86,717.86 = 18,372.18 : x
  2. Step 2: Convert to fraction form
    57,824.29/86,717.86 = 18,372.18/x
  3. Step 3: Cross multiply
    57,824.29x = 86,717.86 × 18,372.18
  4. Step 4: Simplify right side
    57,824.29x = 1,593,196,412.40
  5. Step 5: Solve for x
    x = 1,593,196,412.40/57,824.29
  6. Step 6: Final answer
    x = 27,552.37

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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.