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Finding the Fourth Proportional to 5,579.75, 7,700.00 and 3,221.84

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Solution

The fourth proportional to 5,579.75, 7,700.00 and 3,221.84 is: 4,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.75 : 7,700.00 = 3,221.84 : x
  2. Step 2: Convert to fraction form
    5,579.75/7,700.00 = 3,221.84/x
  3. Step 3: Cross multiply
    5,579.75x = 7,700.00 × 3,221.84
  4. Step 4: Simplify right side
    5,579.75x = 24,808,171.14
  5. Step 5: Solve for x
    x = 24,808,171.14/5,579.75
  6. Step 6: Final answer
    x = 4,446.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.