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Finding the Fourth Proportional to 2,984.86, 4,479.72 and 2,163.52

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Solution

The fourth proportional to 2,984.86, 4,479.72 and 2,163.52 is: 3,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.86 : 4,479.72 = 2,163.52 : x
  2. Step 2: Convert to fraction form
    2,984.86/4,479.72 = 2,163.52/x
  3. Step 3: Cross multiply
    2,984.86x = 4,479.72 × 2,163.52
  4. Step 4: Simplify right side
    2,984.86x = 9,691,963.81
  5. Step 5: Solve for x
    x = 9,691,963.81/2,984.86
  6. Step 6: Final answer
    x = 3,247.04

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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.