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Finding the Fourth Proportional to 64,478.27, 88,979.77 and 36,183.89

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Solution

The fourth proportional to 64,478.27, 88,979.77 and 36,183.89 is: 49,933.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.27 : 88,979.77 = 36,183.89 : x
  2. Step 2: Convert to fraction form
    64,478.27/88,979.77 = 36,183.89/x
  3. Step 3: Cross multiply
    64,478.27x = 88,979.77 × 36,183.89
  4. Step 4: Simplify right side
    64,478.27x = 3,219,634,209.91
  5. Step 5: Solve for x
    x = 3,219,634,209.91/64,478.27
  6. Step 6: Final answer
    x = 49,933.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.