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Finding the Fourth Proportional to 63,687.72, 95,531.70 and 16,940.58

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Solution

The fourth proportional to 63,687.72, 95,531.70 and 16,940.58 is: 25,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,687.72 : 95,531.70 = 16,940.58 : x
  2. Step 2: Convert to fraction form
    63,687.72/95,531.70 = 16,940.58/x
  3. Step 3: Cross multiply
    63,687.72x = 95,531.70 × 16,940.58
  4. Step 4: Simplify right side
    63,687.72x = 1,618,362,406.39
  5. Step 5: Solve for x
    x = 1,618,362,406.39/63,687.72
  6. Step 6: Final answer
    x = 25,410.90

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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.