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Finding the Fourth Proportional to 11,810.55, 17,716.14 and 4,793.88

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Solution

The fourth proportional to 11,810.55, 17,716.14 and 4,793.88 is: 7,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.55 : 17,716.14 = 4,793.88 : x
  2. Step 2: Convert to fraction form
    11,810.55/17,716.14 = 4,793.88/x
  3. Step 3: Cross multiply
    11,810.55x = 17,716.14 × 4,793.88
  4. Step 4: Simplify right side
    11,810.55x = 84,929,049.22
  5. Step 5: Solve for x
    x = 84,929,049.22/11,810.55
  6. Step 6: Final answer
    x = 7,190.95

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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.