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Finding the Fourth Proportional to 11,093.76, 16,651.58 and 6,719.76

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Solution

The fourth proportional to 11,093.76, 16,651.58 and 6,719.76 is: 10,086.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,093.76 : 16,651.58 = 6,719.76 : x
  2. Step 2: Convert to fraction form
    11,093.76/16,651.58 = 6,719.76/x
  3. Step 3: Cross multiply
    11,093.76x = 16,651.58 × 6,719.76
  4. Step 4: Simplify right side
    11,093.76x = 111,894,587.62
  5. Step 5: Solve for x
    x = 111,894,587.62/11,093.76
  6. Step 6: Final answer
    x = 10,086.26

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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.