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Finding the Fourth Proportional to 69,715.74, 104,502.09 and 27,578.94

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Solution

The fourth proportional to 69,715.74, 104,502.09 and 27,578.94 is: 41,340.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,715.74 : 104,502.09 = 27,578.94 : x
  2. Step 2: Convert to fraction form
    69,715.74/104,502.09 = 27,578.94/x
  3. Step 3: Cross multiply
    69,715.74x = 104,502.09 × 27,578.94
  4. Step 4: Simplify right side
    69,715.74x = 2,882,056,869.98
  5. Step 5: Solve for x
    x = 2,882,056,869.98/69,715.74
  6. Step 6: Final answer
    x = 41,340.12

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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.