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Finding the Fourth Proportional to 57,979.91, 86,982.27 and 17,998.01

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Solution

The fourth proportional to 57,979.91, 86,982.27 and 17,998.01 is: 27,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.91 : 86,982.27 = 17,998.01 : x
  2. Step 2: Convert to fraction form
    57,979.91/86,982.27 = 17,998.01/x
  3. Step 3: Cross multiply
    57,979.91x = 86,982.27 × 17,998.01
  4. Step 4: Simplify right side
    57,979.91x = 1,565,507,765.28
  5. Step 5: Solve for x
    x = 1,565,507,765.28/57,979.91
  6. Step 6: Final answer
    x = 27,000.87

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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.