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Finding the Fourth Proportional to 3,828.66, 5,737.65 and 2,069.88

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Solution

The fourth proportional to 3,828.66, 5,737.65 and 2,069.88 is: 3,101.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.66 : 5,737.65 = 2,069.88 : x
  2. Step 2: Convert to fraction form
    3,828.66/5,737.65 = 2,069.88/x
  3. Step 3: Cross multiply
    3,828.66x = 5,737.65 × 2,069.88
  4. Step 4: Simplify right side
    3,828.66x = 11,876,246.98
  5. Step 5: Solve for x
    x = 11,876,246.98/3,828.66
  6. Step 6: Final answer
    x = 3,101.93

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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.