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Finding the Fourth Proportional to 52,763.62, 79,183.32 and 20,747.56

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Solution

The fourth proportional to 52,763.62, 79,183.32 and 20,747.56 is: 31,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,763.62 : 79,183.32 = 20,747.56 : x
  2. Step 2: Convert to fraction form
    52,763.62/79,183.32 = 20,747.56/x
  3. Step 3: Cross multiply
    52,763.62x = 79,183.32 × 20,747.56
  4. Step 4: Simplify right side
    52,763.62x = 1,642,860,682.70
  5. Step 5: Solve for x
    x = 1,642,860,682.70/52,763.62
  6. Step 6: Final answer
    x = 31,136.24

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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.