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Finding the Fourth Proportional to 8,568.52, 12,855.24 and 3,378.04

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Solution

The fourth proportional to 8,568.52, 12,855.24 and 3,378.04 is: 5,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.52 : 12,855.24 = 3,378.04 : x
  2. Step 2: Convert to fraction form
    8,568.52/12,855.24 = 3,378.04/x
  3. Step 3: Cross multiply
    8,568.52x = 12,855.24 × 3,378.04
  4. Step 4: Simplify right side
    8,568.52x = 43,425,514.93
  5. Step 5: Solve for x
    x = 43,425,514.93/8,568.52
  6. Step 6: Final answer
    x = 5,068.03

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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.