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Finding the Fourth Proportional to 8,855.43, 13,297.96 and 5,531.42

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Solution

The fourth proportional to 8,855.43, 13,297.96 and 5,531.42 is: 8,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.43 : 13,297.96 = 5,531.42 : x
  2. Step 2: Convert to fraction form
    8,855.43/13,297.96 = 5,531.42/x
  3. Step 3: Cross multiply
    8,855.43x = 13,297.96 × 5,531.42
  4. Step 4: Simplify right side
    8,855.43x = 73,556,601.90
  5. Step 5: Solve for x
    x = 73,556,601.90/8,855.43
  6. Step 6: Final answer
    x = 8,306.38

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1.5x scale

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.