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Finding the Fourth Proportional to 8,682.74, 13,021.19 and 2,837.98

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Solution

The fourth proportional to 8,682.74, 13,021.19 and 2,837.98 is: 4,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.74 : 13,021.19 = 2,837.98 : x
  2. Step 2: Convert to fraction form
    8,682.74/13,021.19 = 2,837.98/x
  3. Step 3: Cross multiply
    8,682.74x = 13,021.19 × 2,837.98
  4. Step 4: Simplify right side
    8,682.74x = 36,953,876.80
  5. Step 5: Solve for x
    x = 36,953,876.80/8,682.74
  6. Step 6: Final answer
    x = 4,256.02

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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.