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Finding the Fourth Proportional to 64,562.37, 96,839.90 and 20,183.89

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Solution

The fourth proportional to 64,562.37, 96,839.90 and 20,183.89 is: 30,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,562.37 : 96,839.90 = 20,183.89 : x
  2. Step 2: Convert to fraction form
    64,562.37/96,839.90 = 20,183.89/x
  3. Step 3: Cross multiply
    64,562.37x = 96,839.90 × 20,183.89
  4. Step 4: Simplify right side
    64,562.37x = 1,954,605,697.57
  5. Step 5: Solve for x
    x = 1,954,605,697.57/64,562.37
  6. Step 6: Final answer
    x = 30,274.69

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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.