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Finding the Fourth Proportional to 8,867.22, 12,241.20 and 6,873.30

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Solution

The fourth proportional to 8,867.22, 12,241.20 and 6,873.30 is: 9,488.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.22 : 12,241.20 = 6,873.30 : x
  2. Step 2: Convert to fraction form
    8,867.22/12,241.20 = 6,873.30/x
  3. Step 3: Cross multiply
    8,867.22x = 12,241.20 × 6,873.30
  4. Step 4: Simplify right side
    8,867.22x = 84,137,439.96
  5. Step 5: Solve for x
    x = 84,137,439.96/8,867.22
  6. Step 6: Final answer
    x = 9,488.59

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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.