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Finding the Fourth Proportional to 43,951.52, 65,938.08 and 12,787.04

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Solution

The fourth proportional to 43,951.52, 65,938.08 and 12,787.04 is: 19,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,951.52 : 65,938.08 = 12,787.04 : x
  2. Step 2: Convert to fraction form
    43,951.52/65,938.08 = 12,787.04/x
  3. Step 3: Cross multiply
    43,951.52x = 65,938.08 × 12,787.04
  4. Step 4: Simplify right side
    43,951.52x = 843,152,866.48
  5. Step 5: Solve for x
    x = 843,152,866.48/43,951.52
  6. Step 6: Final answer
    x = 19,183.70

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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.