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Finding the Fourth Proportional to 18,048.12, 27,076.79 and 6,951.83

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Solution

The fourth proportional to 18,048.12, 27,076.79 and 6,951.83 is: 10,429.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,048.12 : 27,076.79 = 6,951.83 : x
  2. Step 2: Convert to fraction form
    18,048.12/27,076.79 = 6,951.83/x
  3. Step 3: Cross multiply
    18,048.12x = 27,076.79 × 6,951.83
  4. Step 4: Simplify right side
    18,048.12x = 188,233,224.56
  5. Step 5: Solve for x
    x = 188,233,224.56/18,048.12
  6. Step 6: Final answer
    x = 10,429.52

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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.