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Finding the Fourth Proportional to 8,976.44, 13,465.20 and 2,820.44

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Solution

The fourth proportional to 8,976.44, 13,465.20 and 2,820.44 is: 4,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.44 : 13,465.20 = 2,820.44 : x
  2. Step 2: Convert to fraction form
    8,976.44/13,465.20 = 2,820.44/x
  3. Step 3: Cross multiply
    8,976.44x = 13,465.20 × 2,820.44
  4. Step 4: Simplify right side
    8,976.44x = 37,977,788.69
  5. Step 5: Solve for x
    x = 37,977,788.69/8,976.44
  6. Step 6: Final answer
    x = 4,230.83

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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.