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Finding the Fourth Proportional to 34,481.72, 51,712.56 and 15,751.82

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Solution

The fourth proportional to 34,481.72, 51,712.56 and 15,751.82 is: 23,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,481.72 : 51,712.56 = 15,751.82 : x
  2. Step 2: Convert to fraction form
    34,481.72/51,712.56 = 15,751.82/x
  3. Step 3: Cross multiply
    34,481.72x = 51,712.56 × 15,751.82
  4. Step 4: Simplify right side
    34,481.72x = 814,566,936.86
  5. Step 5: Solve for x
    x = 814,566,936.86/34,481.72
  6. Step 6: Final answer
    x = 23,623.15

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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.