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Finding the Fourth Proportional to 53,474.44, 80,161.22 and 18,389.56

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Solution

The fourth proportional to 53,474.44, 80,161.22 and 18,389.56 is: 27,566.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,474.44 : 80,161.22 = 18,389.56 : x
  2. Step 2: Convert to fraction form
    53,474.44/80,161.22 = 18,389.56/x
  3. Step 3: Cross multiply
    53,474.44x = 80,161.22 × 18,389.56
  4. Step 4: Simplify right side
    53,474.44x = 1,474,129,564.86
  5. Step 5: Solve for x
    x = 1,474,129,564.86/53,474.44
  6. Step 6: Final answer
    x = 27,566.99

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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.