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Finding the Fourth Proportional to 4,766.76, 7,149.18 and 1,479.32

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Solution

The fourth proportional to 4,766.76, 7,149.18 and 1,479.32 is: 2,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.76 : 7,149.18 = 1,479.32 : x
  2. Step 2: Convert to fraction form
    4,766.76/7,149.18 = 1,479.32/x
  3. Step 3: Cross multiply
    4,766.76x = 7,149.18 × 1,479.32
  4. Step 4: Simplify right side
    4,766.76x = 10,575,924.96
  5. Step 5: Solve for x
    x = 10,575,924.96/4,766.76
  6. Step 6: Final answer
    x = 2,218.68

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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.