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Finding the Fourth Proportional to 17,191.78, 25,788.03 and 5,504.96

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Solution

The fourth proportional to 17,191.78, 25,788.03 and 5,504.96 is: 8,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,191.78 : 25,788.03 = 5,504.96 : x
  2. Step 2: Convert to fraction form
    17,191.78/25,788.03 = 5,504.96/x
  3. Step 3: Cross multiply
    17,191.78x = 25,788.03 × 5,504.96
  4. Step 4: Simplify right side
    17,191.78x = 141,962,124.34
  5. Step 5: Solve for x
    x = 141,962,124.34/17,191.78
  6. Step 6: Final answer
    x = 8,257.56

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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.