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Finding the Fourth Proportional to 36,911.50, 50,937.92 and 20,144.50

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Solution

The fourth proportional to 36,911.50, 50,937.92 and 20,144.50 is: 27,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,911.50 : 50,937.92 = 20,144.50 : x
  2. Step 2: Convert to fraction form
    36,911.50/50,937.92 = 20,144.50/x
  3. Step 3: Cross multiply
    36,911.50x = 50,937.92 × 20,144.50
  4. Step 4: Simplify right side
    36,911.50x = 1,026,118,929.44
  5. Step 5: Solve for x
    x = 1,026,118,929.44/36,911.50
  6. Step 6: Final answer
    x = 27,799.44

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1.5x scale

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.