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Finding the Fourth Proportional to 4,986.43, 7,479.44 and 2,063.95

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Solution

The fourth proportional to 4,986.43, 7,479.44 and 2,063.95 is: 3,095.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.43 : 7,479.44 = 2,063.95 : x
  2. Step 2: Convert to fraction form
    4,986.43/7,479.44 = 2,063.95/x
  3. Step 3: Cross multiply
    4,986.43x = 7,479.44 × 2,063.95
  4. Step 4: Simplify right side
    4,986.43x = 15,437,168.91
  5. Step 5: Solve for x
    x = 15,437,168.91/4,986.43
  6. Step 6: Final answer
    x = 3,095.84

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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.