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Finding the Fourth Proportional to 17,481.12, 26,211.96 and 5,787.96

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Solution

The fourth proportional to 17,481.12, 26,211.96 and 5,787.96 is: 8,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,481.12 : 26,211.96 = 5,787.96 : x
  2. Step 2: Convert to fraction form
    17,481.12/26,211.96 = 5,787.96/x
  3. Step 3: Cross multiply
    17,481.12x = 26,211.96 × 5,787.96
  4. Step 4: Simplify right side
    17,481.12x = 151,713,776.00
  5. Step 5: Solve for x
    x = 151,713,776.00/17,481.12
  6. Step 6: Final answer
    x = 8,678.72

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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.