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Finding the Fourth Proportional to 43,855.58, 65,787.51 and 12,265.64

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Solution

The fourth proportional to 43,855.58, 65,787.51 and 12,265.64 is: 18,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.58 : 65,787.51 = 12,265.64 : x
  2. Step 2: Convert to fraction form
    43,855.58/65,787.51 = 12,265.64/x
  3. Step 3: Cross multiply
    43,855.58x = 65,787.51 × 12,265.64
  4. Step 4: Simplify right side
    43,855.58x = 806,925,585.22
  5. Step 5: Solve for x
    x = 806,925,585.22/43,855.58
  6. Step 6: Final answer
    x = 18,399.61

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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.