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Finding the Fourth Proportional to 11,838.76, 17,741.21 and 8,694.09

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Solution

The fourth proportional to 11,838.76, 17,741.21 and 8,694.09 is: 13,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.76 : 17,741.21 = 8,694.09 : x
  2. Step 2: Convert to fraction form
    11,838.76/17,741.21 = 8,694.09/x
  3. Step 3: Cross multiply
    11,838.76x = 17,741.21 × 8,694.09
  4. Step 4: Simplify right side
    11,838.76x = 154,243,632.98
  5. Step 5: Solve for x
    x = 154,243,632.98/11,838.76
  6. Step 6: Final answer
    x = 13,028.70

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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.