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Finding the Fourth Proportional to 8,682.39, 13,019.94 and 2,835.81

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Solution

The fourth proportional to 8,682.39, 13,019.94 and 2,835.81 is: 4,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.39 : 13,019.94 = 2,835.81 : x
  2. Step 2: Convert to fraction form
    8,682.39/13,019.94 = 2,835.81/x
  3. Step 3: Cross multiply
    8,682.39x = 13,019.94 × 2,835.81
  4. Step 4: Simplify right side
    8,682.39x = 36,922,076.05
  5. Step 5: Solve for x
    x = 36,922,076.05/8,682.39
  6. Step 6: Final answer
    x = 4,252.52

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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.