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Finding the Fourth Proportional to 8,872.16, 12,241.94 and 5,335.43

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Solution

The fourth proportional to 8,872.16, 12,241.94 and 5,335.43 is: 7,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.16 : 12,241.94 = 5,335.43 : x
  2. Step 2: Convert to fraction form
    8,872.16/12,241.94 = 5,335.43/x
  3. Step 3: Cross multiply
    8,872.16x = 12,241.94 × 5,335.43
  4. Step 4: Simplify right side
    8,872.16x = 65,315,926.05
  5. Step 5: Solve for x
    x = 65,315,926.05/8,872.16
  6. Step 6: Final answer
    x = 7,361.90

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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.