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Finding the Fourth Proportional to 8,704.78, 12,022.49 and 5,867.26

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Solution

The fourth proportional to 8,704.78, 12,022.49 and 5,867.26 is: 8,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.78 : 12,022.49 = 5,867.26 : x
  2. Step 2: Convert to fraction form
    8,704.78/12,022.49 = 5,867.26/x
  3. Step 3: Cross multiply
    8,704.78x = 12,022.49 × 5,867.26
  4. Step 4: Simplify right side
    8,704.78x = 70,539,093.10
  5. Step 5: Solve for x
    x = 70,539,093.10/8,704.78
  6. Step 6: Final answer
    x = 8,103.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.