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Finding the Fourth Proportional to 60,401.70, 90,584.10 and 28,795.10

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Solution

The fourth proportional to 60,401.70, 90,584.10 and 28,795.10 is: 43,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,401.70 : 90,584.10 = 28,795.10 : x
  2. Step 2: Convert to fraction form
    60,401.70/90,584.10 = 28,795.10/x
  3. Step 3: Cross multiply
    60,401.70x = 90,584.10 × 28,795.10
  4. Step 4: Simplify right side
    60,401.70x = 2,608,378,217.91
  5. Step 5: Solve for x
    x = 2,608,378,217.91/60,401.70
  6. Step 6: Final answer
    x = 43,183.85

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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.