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Finding the Fourth Proportional to 8,065.88, 12,088.02 and 3,381.56

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Solution

The fourth proportional to 8,065.88, 12,088.02 and 3,381.56 is: 5,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.88 : 12,088.02 = 3,381.56 : x
  2. Step 2: Convert to fraction form
    8,065.88/12,088.02 = 3,381.56/x
  3. Step 3: Cross multiply
    8,065.88x = 12,088.02 × 3,381.56
  4. Step 4: Simplify right side
    8,065.88x = 40,876,364.91
  5. Step 5: Solve for x
    x = 40,876,364.91/8,065.88
  6. Step 6: Final answer
    x = 5,067.81

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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.