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Finding the Fourth Proportional to 8,168.58, 12,254.09 and 3,786.48

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Solution

The fourth proportional to 8,168.58, 12,254.09 and 3,786.48 is: 5,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.58 : 12,254.09 = 3,786.48 : x
  2. Step 2: Convert to fraction form
    8,168.58/12,254.09 = 3,786.48/x
  3. Step 3: Cross multiply
    8,168.58x = 12,254.09 × 3,786.48
  4. Step 4: Simplify right side
    8,168.58x = 46,399,847.77
  5. Step 5: Solve for x
    x = 46,399,847.77/8,168.58
  6. Step 6: Final answer
    x = 5,680.28

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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.