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Finding the Fourth Proportional to 64,581.44, 89,124.68 and 36,286.56

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Solution

The fourth proportional to 64,581.44, 89,124.68 and 36,286.56 is: 50,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,581.44 : 89,124.68 = 36,286.56 : x
  2. Step 2: Convert to fraction form
    64,581.44/89,124.68 = 36,286.56/x
  3. Step 3: Cross multiply
    64,581.44x = 89,124.68 × 36,286.56
  4. Step 4: Simplify right side
    64,581.44x = 3,234,028,048.30
  5. Step 5: Solve for x
    x = 3,234,028,048.30/64,581.44
  6. Step 6: Final answer
    x = 50,076.74

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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.