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Finding the Fourth Proportional to 57,769.80, 79,727.94 and 35,103.84

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Solution

The fourth proportional to 57,769.80, 79,727.94 and 35,103.84 is: 48,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.80 : 79,727.94 = 35,103.84 : x
  2. Step 2: Convert to fraction form
    57,769.80/79,727.94 = 35,103.84/x
  3. Step 3: Cross multiply
    57,769.80x = 79,727.94 × 35,103.84
  4. Step 4: Simplify right side
    57,769.80x = 2,798,756,849.29
  5. Step 5: Solve for x
    x = 2,798,756,849.29/57,769.80
  6. Step 6: Final answer
    x = 48,446.71

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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.