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Finding the Fourth Proportional to 57,861.53, 79,816.73 and 33,659.76

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Solution

The fourth proportional to 57,861.53, 79,816.73 and 33,659.76 is: 46,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,861.53 : 79,816.73 = 33,659.76 : x
  2. Step 2: Convert to fraction form
    57,861.53/79,816.73 = 33,659.76/x
  3. Step 3: Cross multiply
    57,861.53x = 79,816.73 × 33,659.76
  4. Step 4: Simplify right side
    57,861.53x = 2,686,611,975.78
  5. Step 5: Solve for x
    x = 2,686,611,975.78/57,861.53
  6. Step 6: Final answer
    x = 46,431.75

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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.