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Finding the Fourth Proportional to 71,847.32, 107,770.89 and 33,887.73

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Solution

The fourth proportional to 71,847.32, 107,770.89 and 33,887.73 is: 50,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,847.32 : 107,770.89 = 33,887.73 : x
  2. Step 2: Convert to fraction form
    71,847.32/107,770.89 = 33,887.73/x
  3. Step 3: Cross multiply
    71,847.32x = 107,770.89 × 33,887.73
  4. Step 4: Simplify right side
    71,847.32x = 3,652,110,822.18
  5. Step 5: Solve for x
    x = 3,652,110,822.18/71,847.32
  6. Step 6: Final answer
    x = 50,831.56

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1.5x scale

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.