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Finding the Fourth Proportional to 13,068, 19,627.22 and 11,198.11

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Solution

The fourth proportional to 13,068, 19,627.22 and 11,198.11 is: 16,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068 : 19,627.22 = 11,198.11 : x
  2. Step 2: Convert to fraction form
    13,068/19,627.22 = 11,198.11/x
  3. Step 3: Cross multiply
    13,068x = 19,627.22 × 11,198.11
  4. Step 4: Simplify right side
    13,068x = 219,787,768.55
  5. Step 5: Solve for x
    x = 219,787,768.55/13,068
  6. Step 6: Final answer
    x = 16,818.78

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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.