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Finding the Fourth Proportional to 5,620.64, 8,425.49 and 2,700.99

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Solution

The fourth proportional to 5,620.64, 8,425.49 and 2,700.99 is: 4,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.64 : 8,425.49 = 2,700.99 : x
  2. Step 2: Convert to fraction form
    5,620.64/8,425.49 = 2,700.99/x
  3. Step 3: Cross multiply
    5,620.64x = 8,425.49 × 2,700.99
  4. Step 4: Simplify right side
    5,620.64x = 22,757,150.73
  5. Step 5: Solve for x
    x = 22,757,150.73/5,620.64
  6. Step 6: Final answer
    x = 4,048.86

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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.