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Finding the Fourth Proportional to 15,797.72, 23,691.11 and 8,788.39

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Solution

The fourth proportional to 15,797.72, 23,691.11 and 8,788.39 is: 13,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.72 : 23,691.11 = 8,788.39 : x
  2. Step 2: Convert to fraction form
    15,797.72/23,691.11 = 8,788.39/x
  3. Step 3: Cross multiply
    15,797.72x = 23,691.11 × 8,788.39
  4. Step 4: Simplify right side
    15,797.72x = 208,206,714.21
  5. Step 5: Solve for x
    x = 208,206,714.21/15,797.72
  6. Step 6: Final answer
    x = 13,179.54

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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.