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Finding the Fourth Proportional to 11,241.90, 16,830.45 and 6,867.90

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Solution

The fourth proportional to 11,241.90, 16,830.45 and 6,867.90 is: 10,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.90 : 16,830.45 = 6,867.90 : x
  2. Step 2: Convert to fraction form
    11,241.90/16,830.45 = 6,867.90/x
  3. Step 3: Cross multiply
    11,241.90x = 16,830.45 × 6,867.90
  4. Step 4: Simplify right side
    11,241.90x = 115,589,847.56
  5. Step 5: Solve for x
    x = 115,589,847.56/11,241.90
  6. Step 6: Final answer
    x = 10,282.06

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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.