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Finding the Fourth Proportional to 80,535.57, 120,803.24 and 33,788.45

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Solution

The fourth proportional to 80,535.57, 120,803.24 and 33,788.45 is: 50,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,535.57 : 120,803.24 = 33,788.45 : x
  2. Step 2: Convert to fraction form
    80,535.57/120,803.24 = 33,788.45/x
  3. Step 3: Cross multiply
    80,535.57x = 120,803.24 × 33,788.45
  4. Step 4: Simplify right side
    80,535.57x = 4,081,753,461.62
  5. Step 5: Solve for x
    x = 4,081,753,461.62/80,535.57
  6. Step 6: Final answer
    x = 50,682.62

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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.