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Finding the Fourth Proportional to 36,919, 50,949.30 and 20,153.08

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Solution

The fourth proportional to 36,919, 50,949.30 and 20,153.08 is: 27,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,919 : 50,949.30 = 20,153.08 : x
  2. Step 2: Convert to fraction form
    36,919/50,949.30 = 20,153.08/x
  3. Step 3: Cross multiply
    36,919x = 50,949.30 × 20,153.08
  4. Step 4: Simplify right side
    36,919x = 1,026,785,318.84
  5. Step 5: Solve for x
    x = 1,026,785,318.84/36,919
  6. Step 6: Final answer
    x = 27,811.84

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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.