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Finding the Fourth Proportional to 17,331.90, 25,961.40 and 14,415.90

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Solution

The fourth proportional to 17,331.90, 25,961.40 and 14,415.90 is: 21,593.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,331.90 : 25,961.40 = 14,415.90 : x
  2. Step 2: Convert to fraction form
    17,331.90/25,961.40 = 14,415.90/x
  3. Step 3: Cross multiply
    17,331.90x = 25,961.40 × 14,415.90
  4. Step 4: Simplify right side
    17,331.90x = 374,256,946.26
  5. Step 5: Solve for x
    x = 374,256,946.26/17,331.90
  6. Step 6: Final answer
    x = 21,593.53

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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.