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Finding the Fourth Proportional to 17,927.90, 26,891.83 and 5,447.87

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Solution

The fourth proportional to 17,927.90, 26,891.83 and 5,447.87 is: 8,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,927.90 : 26,891.83 = 5,447.87 : x
  2. Step 2: Convert to fraction form
    17,927.90/26,891.83 = 5,447.87/x
  3. Step 3: Cross multiply
    17,927.90x = 26,891.83 × 5,447.87
  4. Step 4: Simplify right side
    17,927.90x = 146,503,193.90
  5. Step 5: Solve for x
    x = 146,503,193.90/17,927.90
  6. Step 6: Final answer
    x = 8,171.80

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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.