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Finding the Fourth Proportional to 47,687.67, 71,531.46 and 12,627.36

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Solution

The fourth proportional to 47,687.67, 71,531.46 and 12,627.36 is: 18,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,687.67 : 71,531.46 = 12,627.36 : x
  2. Step 2: Convert to fraction form
    47,687.67/71,531.46 = 12,627.36/x
  3. Step 3: Cross multiply
    47,687.67x = 71,531.46 × 12,627.36
  4. Step 4: Simplify right side
    47,687.67x = 903,253,496.75
  5. Step 5: Solve for x
    x = 903,253,496.75/47,687.67
  6. Step 6: Final answer
    x = 18,941.03

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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.