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Finding the Fourth Proportional to 56,057.01, 84,101.92 and 18,105.42

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Solution

The fourth proportional to 56,057.01, 84,101.92 and 18,105.42 is: 27,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,057.01 : 84,101.92 = 18,105.42 : x
  2. Step 2: Convert to fraction form
    56,057.01/84,101.92 = 18,105.42/x
  3. Step 3: Cross multiply
    56,057.01x = 84,101.92 × 18,105.42
  4. Step 4: Simplify right side
    56,057.01x = 1,522,700,905.45
  5. Step 5: Solve for x
    x = 1,522,700,905.45/56,057.01
  6. Step 6: Final answer
    x = 27,163.43

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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.