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Finding the Fourth Proportional to 17,881.63, 26,815.96 and 8,015.83

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Solution

The fourth proportional to 17,881.63, 26,815.96 and 8,015.83 is: 12,020.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,881.63 : 26,815.96 = 8,015.83 : x
  2. Step 2: Convert to fraction form
    17,881.63/26,815.96 = 8,015.83/x
  3. Step 3: Cross multiply
    17,881.63x = 26,815.96 × 8,015.83
  4. Step 4: Simplify right side
    17,881.63x = 214,952,022.53
  5. Step 5: Solve for x
    x = 214,952,022.53/17,881.63
  6. Step 6: Final answer
    x = 12,020.83

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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.