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Finding the Fourth Proportional to 8,601.76, 12,904.46 and 2,762.47

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Solution

The fourth proportional to 8,601.76, 12,904.46 and 2,762.47 is: 4,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.76 : 12,904.46 = 2,762.47 : x
  2. Step 2: Convert to fraction form
    8,601.76/12,904.46 = 2,762.47/x
  3. Step 3: Cross multiply
    8,601.76x = 12,904.46 × 2,762.47
  4. Step 4: Simplify right side
    8,601.76x = 35,648,183.62
  5. Step 5: Solve for x
    x = 35,648,183.62/8,601.76
  6. Step 6: Final answer
    x = 4,144.29

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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.