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Finding the Fourth Proportional to 57,769.11, 79,678.73 and 36,527.88

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Solution

The fourth proportional to 57,769.11, 79,678.73 and 36,527.88 is: 50,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.11 : 79,678.73 = 36,527.88 : x
  2. Step 2: Convert to fraction form
    57,769.11/79,678.73 = 36,527.88/x
  3. Step 3: Cross multiply
    57,769.11x = 79,678.73 × 36,527.88
  4. Step 4: Simplify right side
    57,769.11x = 2,910,494,598.28
  5. Step 5: Solve for x
    x = 2,910,494,598.28/57,769.11
  6. Step 6: Final answer
    x = 50,381.50

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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.