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Finding the Fourth Proportional to 33,765, 50,630.20 and 17,979

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Solution

The fourth proportional to 33,765, 50,630.20 and 17,979 is: 26,959.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,765 : 50,630.20 = 17,979 : x
  2. Step 2: Convert to fraction form
    33,765/50,630.20 = 17,979/x
  3. Step 3: Cross multiply
    33,765x = 50,630.20 × 17,979
  4. Step 4: Simplify right side
    33,765x = 910,280,365.80
  5. Step 5: Solve for x
    x = 910,280,365.80/33,765
  6. Step 6: Final answer
    x = 26,959.29

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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.