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Finding the Fourth Proportional to 25,736.52, 38,604.06 and 8,205.96

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Solution

The fourth proportional to 25,736.52, 38,604.06 and 8,205.96 is: 12,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,736.52 : 38,604.06 = 8,205.96 : x
  2. Step 2: Convert to fraction form
    25,736.52/38,604.06 = 8,205.96/x
  3. Step 3: Cross multiply
    25,736.52x = 38,604.06 × 8,205.96
  4. Step 4: Simplify right side
    25,736.52x = 316,783,372.20
  5. Step 5: Solve for x
    x = 316,783,372.20/25,736.52
  6. Step 6: Final answer
    x = 12,308.71

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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.