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Finding the Fourth Proportional to 5,819.99, 8,730.05 and 3,228.39

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Solution

The fourth proportional to 5,819.99, 8,730.05 and 3,228.39 is: 4,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.99 : 8,730.05 = 3,228.39 : x
  2. Step 2: Convert to fraction form
    5,819.99/8,730.05 = 3,228.39/x
  3. Step 3: Cross multiply
    5,819.99x = 8,730.05 × 3,228.39
  4. Step 4: Simplify right side
    5,819.99x = 28,183,989.98
  5. Step 5: Solve for x
    x = 28,183,989.98/5,819.99
  6. Step 6: Final answer
    x = 4,842.62

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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.