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Finding the Fourth Proportional to 4,766.13, 7,149.29 and 1,479.15

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Solution

The fourth proportional to 4,766.13, 7,149.29 and 1,479.15 is: 2,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.13 : 7,149.29 = 1,479.15 : x
  2. Step 2: Convert to fraction form
    4,766.13/7,149.29 = 1,479.15/x
  3. Step 3: Cross multiply
    4,766.13x = 7,149.29 × 1,479.15
  4. Step 4: Simplify right side
    4,766.13x = 10,574,864.91
  5. Step 5: Solve for x
    x = 10,574,864.91/4,766.13
  6. Step 6: Final answer
    x = 2,218.75

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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.