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Finding the Fourth Proportional to 55,963.20, 83,944.80 and 19,027.20

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Solution

The fourth proportional to 55,963.20, 83,944.80 and 19,027.20 is: 28,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,963.20 : 83,944.80 = 19,027.20 : x
  2. Step 2: Convert to fraction form
    55,963.20/83,944.80 = 19,027.20/x
  3. Step 3: Cross multiply
    55,963.20x = 83,944.80 × 19,027.20
  4. Step 4: Simplify right side
    55,963.20x = 1,597,234,498.56
  5. Step 5: Solve for x
    x = 1,597,234,498.56/55,963.20
  6. Step 6: Final answer
    x = 28,540.80

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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.