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Finding the Fourth Proportional to 57,998.37, 87,008.49 and 18,544.89

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Solution

The fourth proportional to 57,998.37, 87,008.49 and 18,544.89 is: 27,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998.37 : 87,008.49 = 18,544.89 : x
  2. Step 2: Convert to fraction form
    57,998.37/87,008.49 = 18,544.89/x
  3. Step 3: Cross multiply
    57,998.37x = 87,008.49 × 18,544.89
  4. Step 4: Simplify right side
    57,998.37x = 1,613,562,876.12
  5. Step 5: Solve for x
    x = 1,613,562,876.12/57,998.37
  6. Step 6: Final answer
    x = 27,820.83

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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.