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Finding the Fourth Proportional to 18,484.29, 27,709.88 and 6,789.33

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Solution

The fourth proportional to 18,484.29, 27,709.88 and 6,789.33 is: 10,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.29 : 27,709.88 = 6,789.33 : x
  2. Step 2: Convert to fraction form
    18,484.29/27,709.88 = 6,789.33/x
  3. Step 3: Cross multiply
    18,484.29x = 27,709.88 × 6,789.33
  4. Step 4: Simplify right side
    18,484.29x = 188,131,485.63
  5. Step 5: Solve for x
    x = 188,131,485.63/18,484.29
  6. Step 6: Final answer
    x = 10,177.91

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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.