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Finding the Fourth Proportional to 17,910.32, 26,889.84 and 12,349.88

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Solution

The fourth proportional to 17,910.32, 26,889.84 and 12,349.88 is: 18,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,910.32 : 26,889.84 = 12,349.88 : x
  2. Step 2: Convert to fraction form
    17,910.32/26,889.84 = 12,349.88/x
  3. Step 3: Cross multiply
    17,910.32x = 26,889.84 × 12,349.88
  4. Step 4: Simplify right side
    17,910.32x = 332,086,297.22
  5. Step 5: Solve for x
    x = 332,086,297.22/17,910.32
  6. Step 6: Final answer
    x = 18,541.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.