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Finding the Fourth Proportional to 71,217.75, 106,879.08 and 33,777.93

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Solution

The fourth proportional to 71,217.75, 106,879.08 and 33,777.93 is: 50,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,217.75 : 106,879.08 = 33,777.93 : x
  2. Step 2: Convert to fraction form
    71,217.75/106,879.08 = 33,777.93/x
  3. Step 3: Cross multiply
    71,217.75x = 106,879.08 × 33,777.93
  4. Step 4: Simplify right side
    71,217.75x = 3,610,154,082.70
  5. Step 5: Solve for x
    x = 3,610,154,082.70/71,217.75
  6. Step 6: Final answer
    x = 50,691.77

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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.