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Finding the Fourth Proportional to 56,676.78, 85,024.92 and 17,237.88

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Solution

The fourth proportional to 56,676.78, 85,024.92 and 17,237.88 is: 25,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,676.78 : 85,024.92 = 17,237.88 : x
  2. Step 2: Convert to fraction form
    56,676.78/85,024.92 = 17,237.88/x
  3. Step 3: Cross multiply
    56,676.78x = 85,024.92 × 17,237.88
  4. Step 4: Simplify right side
    56,676.78x = 1,465,649,367.97
  5. Step 5: Solve for x
    x = 1,465,649,367.97/56,676.78
  6. Step 6: Final answer
    x = 25,859.79

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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.