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Finding the Fourth Proportional to 18,560.69, 27,827.81 and 8,694.59

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Solution

The fourth proportional to 18,560.69, 27,827.81 and 8,694.59 is: 13,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.69 : 27,827.81 = 8,694.59 : x
  2. Step 2: Convert to fraction form
    18,560.69/27,827.81 = 8,694.59/x
  3. Step 3: Cross multiply
    18,560.69x = 27,827.81 × 8,694.59
  4. Step 4: Simplify right side
    18,560.69x = 241,951,215.94
  5. Step 5: Solve for x
    x = 241,951,215.94/18,560.69
  6. Step 6: Final answer
    x = 13,035.68

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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.