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Finding the Fourth Proportional to 17,902.86, 26,841.51 and 8,409.88

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Solution

The fourth proportional to 17,902.86, 26,841.51 and 8,409.88 is: 12,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,902.86 : 26,841.51 = 8,409.88 : x
  2. Step 2: Convert to fraction form
    17,902.86/26,841.51 = 8,409.88/x
  3. Step 3: Cross multiply
    17,902.86x = 26,841.51 × 8,409.88
  4. Step 4: Simplify right side
    17,902.86x = 225,733,760.69
  5. Step 5: Solve for x
    x = 225,733,760.69/17,902.86
  6. Step 6: Final answer
    x = 12,608.81

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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.