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Finding the Fourth Proportional to 18,469.36, 27,704.04 and 4,618.36

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Solution

The fourth proportional to 18,469.36, 27,704.04 and 4,618.36 is: 6,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.36 : 27,704.04 = 4,618.36 : x
  2. Step 2: Convert to fraction form
    18,469.36/27,704.04 = 4,618.36/x
  3. Step 3: Cross multiply
    18,469.36x = 27,704.04 × 4,618.36
  4. Step 4: Simplify right side
    18,469.36x = 127,947,230.17
  5. Step 5: Solve for x
    x = 127,947,230.17/18,469.36
  6. Step 6: Final answer
    x = 6,927.54

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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.