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Finding the Fourth Proportional to 65,912.02, 90,958.86 and 35,697.70

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Solution

The fourth proportional to 65,912.02, 90,958.86 and 35,697.70 is: 49,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,912.02 : 90,958.86 = 35,697.70 : x
  2. Step 2: Convert to fraction form
    65,912.02/90,958.86 = 35,697.70/x
  3. Step 3: Cross multiply
    65,912.02x = 90,958.86 × 35,697.70
  4. Step 4: Simplify right side
    65,912.02x = 3,247,022,096.62
  5. Step 5: Solve for x
    x = 3,247,022,096.62/65,912.02
  6. Step 6: Final answer
    x = 49,262.97

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1.5x scale

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.