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Finding the Fourth Proportional to 17,043.94, 25,531.88 and 13,539.88

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Solution

The fourth proportional to 17,043.94, 25,531.88 and 13,539.88 is: 20,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,043.94 : 25,531.88 = 13,539.88 : x
  2. Step 2: Convert to fraction form
    17,043.94/25,531.88 = 13,539.88/x
  3. Step 3: Cross multiply
    17,043.94x = 25,531.88 × 13,539.88
  4. Step 4: Simplify right side
    17,043.94x = 345,698,523.68
  5. Step 5: Solve for x
    x = 345,698,523.68/17,043.94
  6. Step 6: Final answer
    x = 20,282.78

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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.