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Finding the Fourth Proportional to 18,194, 25,108.89 and 11,028.86

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Solution

The fourth proportional to 18,194, 25,108.89 and 11,028.86 is: 15,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194 : 25,108.89 = 11,028.86 : x
  2. Step 2: Convert to fraction form
    18,194/25,108.89 = 11,028.86/x
  3. Step 3: Cross multiply
    18,194x = 25,108.89 × 11,028.86
  4. Step 4: Simplify right side
    18,194x = 276,922,432.57
  5. Step 5: Solve for x
    x = 276,922,432.57/18,194
  6. Step 6: Final answer
    x = 15,220.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.