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Finding the Fourth Proportional to 11,360.92, 17,040.40 and 6,917.44

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Solution

The fourth proportional to 11,360.92, 17,040.40 and 6,917.44 is: 10,375.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,360.92 : 17,040.40 = 6,917.44 : x
  2. Step 2: Convert to fraction form
    11,360.92/17,040.40 = 6,917.44/x
  3. Step 3: Cross multiply
    11,360.92x = 17,040.40 × 6,917.44
  4. Step 4: Simplify right side
    11,360.92x = 117,875,944.58
  5. Step 5: Solve for x
    x = 117,875,944.58/11,360.92
  6. Step 6: Final answer
    x = 10,375.56

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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.