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Finding the Fourth Proportional to 11,168.87, 16,746.47 and 4,508.43

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Solution

The fourth proportional to 11,168.87, 16,746.47 and 4,508.43 is: 6,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.87 : 16,746.47 = 4,508.43 : x
  2. Step 2: Convert to fraction form
    11,168.87/16,746.47 = 4,508.43/x
  3. Step 3: Cross multiply
    11,168.87x = 16,746.47 × 4,508.43
  4. Step 4: Simplify right side
    11,168.87x = 75,500,265.20
  5. Step 5: Solve for x
    x = 75,500,265.20/11,168.87
  6. Step 6: Final answer
    x = 6,759.89

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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.