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Finding the Fourth Proportional to 64,921.50, 89,591.67 and 36,626.58

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Solution

The fourth proportional to 64,921.50, 89,591.67 and 36,626.58 is: 50,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,921.50 : 89,591.67 = 36,626.58 : x
  2. Step 2: Convert to fraction form
    64,921.50/89,591.67 = 36,626.58/x
  3. Step 3: Cross multiply
    64,921.50x = 89,591.67 × 36,626.58
  4. Step 4: Simplify right side
    64,921.50x = 3,281,436,468.59
  5. Step 5: Solve for x
    x = 3,281,436,468.59/64,921.50
  6. Step 6: Final answer
    x = 50,544.68

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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.