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Finding the Fourth Proportional to 57,765.50, 86,635.80 and 33,733.76

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Solution

The fourth proportional to 57,765.50, 86,635.80 and 33,733.76 is: 50,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.50 : 86,635.80 = 33,733.76 : x
  2. Step 2: Convert to fraction form
    57,765.50/86,635.80 = 33,733.76/x
  3. Step 3: Cross multiply
    57,765.50x = 86,635.80 × 33,733.76
  4. Step 4: Simplify right side
    57,765.50x = 2,922,551,284.61
  5. Step 5: Solve for x
    x = 2,922,551,284.61/57,765.50
  6. Step 6: Final answer
    x = 50,593.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.