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Finding the Fourth Proportional to 57,771.86, 79,682.52 and 36,530.62

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Solution

The fourth proportional to 57,771.86, 79,682.52 and 36,530.62 is: 50,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,771.86 : 79,682.52 = 36,530.62 : x
  2. Step 2: Convert to fraction form
    57,771.86/79,682.52 = 36,530.62/x
  3. Step 3: Cross multiply
    57,771.86x = 79,682.52 × 36,530.62
  4. Step 4: Simplify right side
    57,771.86x = 2,910,851,858.76
  5. Step 5: Solve for x
    x = 2,910,851,858.76/57,771.86
  6. Step 6: Final answer
    x = 50,385.29

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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.