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Finding the Fourth Proportional to 27,715.92, 41,573.88 and 6,939.42

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Solution

The fourth proportional to 27,715.92, 41,573.88 and 6,939.42 is: 10,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,715.92 : 41,573.88 = 6,939.42 : x
  2. Step 2: Convert to fraction form
    27,715.92/41,573.88 = 6,939.42/x
  3. Step 3: Cross multiply
    27,715.92x = 41,573.88 × 6,939.42
  4. Step 4: Simplify right side
    27,715.92x = 288,498,614.35
  5. Step 5: Solve for x
    x = 288,498,614.35/27,715.92
  6. Step 6: Final answer
    x = 10,409.13

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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.