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Finding the Fourth Proportional to 28,881.44, 43,322.16 and 12,241.10

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Solution

The fourth proportional to 28,881.44, 43,322.16 and 12,241.10 is: 18,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.44 : 43,322.16 = 12,241.10 : x
  2. Step 2: Convert to fraction form
    28,881.44/43,322.16 = 12,241.10/x
  3. Step 3: Cross multiply
    28,881.44x = 43,322.16 × 12,241.10
  4. Step 4: Simplify right side
    28,881.44x = 530,310,892.78
  5. Step 5: Solve for x
    x = 530,310,892.78/28,881.44
  6. Step 6: Final answer
    x = 18,361.65

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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.