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Finding the Fourth Proportional to 8,843.11, 12,191.93 and 6,418.30

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Solution

The fourth proportional to 8,843.11, 12,191.93 and 6,418.30 is: 8,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.11 : 12,191.93 = 6,418.30 : x
  2. Step 2: Convert to fraction form
    8,843.11/12,191.93 = 6,418.30/x
  3. Step 3: Cross multiply
    8,843.11x = 12,191.93 × 6,418.30
  4. Step 4: Simplify right side
    8,843.11x = 78,251,484.78
  5. Step 5: Solve for x
    x = 78,251,484.78/8,843.11
  6. Step 6: Final answer
    x = 8,848.86

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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.