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Finding the Fourth Proportional to 57,753.08, 86,632.08 and 18,309.32

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Solution

The fourth proportional to 57,753.08, 86,632.08 and 18,309.32 is: 27,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,753.08 : 86,632.08 = 18,309.32 : x
  2. Step 2: Convert to fraction form
    57,753.08/86,632.08 = 18,309.32/x
  3. Step 3: Cross multiply
    57,753.08x = 86,632.08 × 18,309.32
  4. Step 4: Simplify right side
    57,753.08x = 1,586,174,474.99
  5. Step 5: Solve for x
    x = 1,586,174,474.99/57,753.08
  6. Step 6: Final answer
    x = 27,464.76

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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.