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Finding the Fourth Proportional to 7,963.65, 11,951.85 and 4,679.49

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Solution

The fourth proportional to 7,963.65, 11,951.85 and 4,679.49 is: 7,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.65 : 11,951.85 = 4,679.49 : x
  2. Step 2: Convert to fraction form
    7,963.65/11,951.85 = 4,679.49/x
  3. Step 3: Cross multiply
    7,963.65x = 11,951.85 × 4,679.49
  4. Step 4: Simplify right side
    7,963.65x = 55,928,562.56
  5. Step 5: Solve for x
    x = 55,928,562.56/7,963.65
  6. Step 6: Final answer
    x = 7,022.98

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1.5x scale

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.