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Finding the Fourth Proportional to 57,910.14, 79,965.87 and 36,435.69

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Solution

The fourth proportional to 57,910.14, 79,965.87 and 36,435.69 is: 50,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,910.14 : 79,965.87 = 36,435.69 : x
  2. Step 2: Convert to fraction form
    57,910.14/79,965.87 = 36,435.69/x
  3. Step 3: Cross multiply
    57,910.14x = 79,965.87 × 36,435.69
  4. Step 4: Simplify right side
    57,910.14x = 2,913,611,649.90
  5. Step 5: Solve for x
    x = 2,913,611,649.90/57,910.14
  6. Step 6: Final answer
    x = 50,312.63

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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.