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Finding the Fourth Proportional to 36,876, 50,888.88 and 20,109.04

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Solution

The fourth proportional to 36,876, 50,888.88 and 20,109.04 is: 27,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,876 : 50,888.88 = 20,109.04 : x
  2. Step 2: Convert to fraction form
    36,876/50,888.88 = 20,109.04/x
  3. Step 3: Cross multiply
    36,876x = 50,888.88 × 20,109.04
  4. Step 4: Simplify right side
    36,876x = 1,023,326,523.48
  5. Step 5: Solve for x
    x = 1,023,326,523.48/36,876
  6. Step 6: Final answer
    x = 27,750.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.