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Finding the Fourth Proportional to 53,236.89, 79,855.38 and 29,879.73

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Solution

The fourth proportional to 53,236.89, 79,855.38 and 29,879.73 is: 44,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,236.89 : 79,855.38 = 29,879.73 : x
  2. Step 2: Convert to fraction form
    53,236.89/79,855.38 = 29,879.73/x
  3. Step 3: Cross multiply
    53,236.89x = 79,855.38 × 29,879.73
  4. Step 4: Simplify right side
    53,236.89x = 2,386,057,193.45
  5. Step 5: Solve for x
    x = 2,386,057,193.45/53,236.89
  6. Step 6: Final answer
    x = 44,819.62

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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.