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Finding the Fourth Proportional to 7,976.73, 11,007.73 and 4,439.87

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Solution

The fourth proportional to 7,976.73, 11,007.73 and 4,439.87 is: 6,126.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.73 : 11,007.73 = 4,439.87 : x
  2. Step 2: Convert to fraction form
    7,976.73/11,007.73 = 4,439.87/x
  3. Step 3: Cross multiply
    7,976.73x = 11,007.73 × 4,439.87
  4. Step 4: Simplify right side
    7,976.73x = 48,872,890.20
  5. Step 5: Solve for x
    x = 48,872,890.20/7,976.73
  6. Step 6: Final answer
    x = 6,126.93

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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.