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Finding the Fourth Proportional to 57,905.52, 86,857.37 and 18,462.37

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Solution

The fourth proportional to 57,905.52, 86,857.37 and 18,462.37 is: 27,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,905.52 : 86,857.37 = 18,462.37 : x
  2. Step 2: Convert to fraction form
    57,905.52/86,857.37 = 18,462.37/x
  3. Step 3: Cross multiply
    57,905.52x = 86,857.37 × 18,462.37
  4. Step 4: Simplify right side
    57,905.52x = 1,603,592,661.95
  5. Step 5: Solve for x
    x = 1,603,592,661.95/57,905.52
  6. Step 6: Final answer
    x = 27,693.26

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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.