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Finding the Fourth Proportional to 49,190.40, 73,814.40 and 18,028.80

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Solution

The fourth proportional to 49,190.40, 73,814.40 and 18,028.80 is: 27,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,190.40 : 73,814.40 = 18,028.80 : x
  2. Step 2: Convert to fraction form
    49,190.40/73,814.40 = 18,028.80/x
  3. Step 3: Cross multiply
    49,190.40x = 73,814.40 × 18,028.80
  4. Step 4: Simplify right side
    49,190.40x = 1,330,785,054.72
  5. Step 5: Solve for x
    x = 1,330,785,054.72/49,190.40
  6. Step 6: Final answer
    x = 27,053.76

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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.