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Finding the Fourth Proportional to 80,593.28, 120,766.76 and 33,820.64

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Solution

The fourth proportional to 80,593.28, 120,766.76 and 33,820.64 is: 50,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,593.28 : 120,766.76 = 33,820.64 : x
  2. Step 2: Convert to fraction form
    80,593.28/120,766.76 = 33,820.64/x
  3. Step 3: Cross multiply
    80,593.28x = 120,766.76 × 33,820.64
  4. Step 4: Simplify right side
    80,593.28x = 4,084,409,113.93
  5. Step 5: Solve for x
    x = 4,084,409,113.93/80,593.28
  6. Step 6: Final answer
    x = 50,679.28

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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.