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Finding the Fourth Proportional to 36,874.21, 50,886.40 and 20,107.21

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Solution

The fourth proportional to 36,874.21, 50,886.40 and 20,107.21 is: 27,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.21 : 50,886.40 = 20,107.21 : x
  2. Step 2: Convert to fraction form
    36,874.21/50,886.40 = 20,107.21/x
  3. Step 3: Cross multiply
    36,874.21x = 50,886.40 × 20,107.21
  4. Step 4: Simplify right side
    36,874.21x = 1,023,183,607.89
  5. Step 5: Solve for x
    x = 1,023,183,607.89/36,874.21
  6. Step 6: Final answer
    x = 27,747.94

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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.