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Finding the Fourth Proportional to 36,520.64, 54,787.02 and 12,822.04

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Solution

The fourth proportional to 36,520.64, 54,787.02 and 12,822.04 is: 19,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,520.64 : 54,787.02 = 12,822.04 : x
  2. Step 2: Convert to fraction form
    36,520.64/54,787.02 = 12,822.04/x
  3. Step 3: Cross multiply
    36,520.64x = 54,787.02 × 12,822.04
  4. Step 4: Simplify right side
    36,520.64x = 702,481,361.92
  5. Step 5: Solve for x
    x = 702,481,361.92/36,520.64
  6. Step 6: Final answer
    x = 19,235.19

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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.