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Finding the Fourth Proportional to 57,866.44, 79,855.70 and 32,715.72

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Solution

The fourth proportional to 57,866.44, 79,855.70 and 32,715.72 is: 45,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.44 : 79,855.70 = 32,715.72 : x
  2. Step 2: Convert to fraction form
    57,866.44/79,855.70 = 32,715.72/x
  3. Step 3: Cross multiply
    57,866.44x = 79,855.70 × 32,715.72
  4. Step 4: Simplify right side
    57,866.44x = 2,612,536,721.60
  5. Step 5: Solve for x
    x = 2,612,536,721.60/57,866.44
  6. Step 6: Final answer
    x = 45,147.70

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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.