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Finding the Fourth Proportional to 11,874.56, 17,815.08 and 3,554.96

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Solution

The fourth proportional to 11,874.56, 17,815.08 and 3,554.96 is: 5,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.56 : 17,815.08 = 3,554.96 : x
  2. Step 2: Convert to fraction form
    11,874.56/17,815.08 = 3,554.96/x
  3. Step 3: Cross multiply
    11,874.56x = 17,815.08 × 3,554.96
  4. Step 4: Simplify right side
    11,874.56x = 63,331,896.80
  5. Step 5: Solve for x
    x = 63,331,896.80/11,874.56
  6. Step 6: Final answer
    x = 5,333.41

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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.