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Finding the Fourth Proportional to 11,816.92, 17,722.70 and 3,497.56

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Solution

The fourth proportional to 11,816.92, 17,722.70 and 3,497.56 is: 5,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.92 : 17,722.70 = 3,497.56 : x
  2. Step 2: Convert to fraction form
    11,816.92/17,722.70 = 3,497.56/x
  3. Step 3: Cross multiply
    11,816.92x = 17,722.70 × 3,497.56
  4. Step 4: Simplify right side
    11,816.92x = 61,986,206.61
  5. Step 5: Solve for x
    x = 61,986,206.61/11,816.92
  6. Step 6: Final answer
    x = 5,245.55

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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.