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Finding the Fourth Proportional to 4,819.62, 7,220.88 and 3,355.92

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Solution

The fourth proportional to 4,819.62, 7,220.88 and 3,355.92 is: 5,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.62 : 7,220.88 = 3,355.92 : x
  2. Step 2: Convert to fraction form
    4,819.62/7,220.88 = 3,355.92/x
  3. Step 3: Cross multiply
    4,819.62x = 7,220.88 × 3,355.92
  4. Step 4: Simplify right side
    4,819.62x = 24,232,695.61
  5. Step 5: Solve for x
    x = 24,232,695.61/4,819.62
  6. Step 6: Final answer
    x = 5,027.93

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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.