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Finding the Fourth Proportional to 57,864.70, 79,861.80 and 36,645.94

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Solution

The fourth proportional to 57,864.70, 79,861.80 and 36,645.94 is: 50,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,864.70 : 79,861.80 = 36,645.94 : x
  2. Step 2: Convert to fraction form
    57,864.70/79,861.80 = 36,645.94/x
  3. Step 3: Cross multiply
    57,864.70x = 79,861.80 × 36,645.94
  4. Step 4: Simplify right side
    57,864.70x = 2,926,610,731.09
  5. Step 5: Solve for x
    x = 2,926,610,731.09/57,864.70
  6. Step 6: Final answer
    x = 50,576.79

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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.