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Finding the Fourth Proportional to 25,879.69, 38,819.52 and 8,349.52

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Solution

The fourth proportional to 25,879.69, 38,819.52 and 8,349.52 is: 12,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879.69 : 38,819.52 = 8,349.52 : x
  2. Step 2: Convert to fraction form
    25,879.69/38,819.52 = 8,349.52/x
  3. Step 3: Cross multiply
    25,879.69x = 38,819.52 × 8,349.52
  4. Step 4: Simplify right side
    25,879.69x = 324,124,358.63
  5. Step 5: Solve for x
    x = 324,124,358.63/25,879.69
  6. Step 6: Final answer
    x = 12,524.28

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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.