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Finding the Fourth Proportional to 7,251.82, 10,879.54 and 2,057.70

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Solution

The fourth proportional to 7,251.82, 10,879.54 and 2,057.70 is: 3,087.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.82 : 10,879.54 = 2,057.70 : x
  2. Step 2: Convert to fraction form
    7,251.82/10,879.54 = 2,057.70/x
  3. Step 3: Cross multiply
    7,251.82x = 10,879.54 × 2,057.70
  4. Step 4: Simplify right side
    7,251.82x = 22,386,829.46
  5. Step 5: Solve for x
    x = 22,386,829.46/7,251.82
  6. Step 6: Final answer
    x = 3,087.06

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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.