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Finding the Fourth Proportional to 36,838.40, 50,843.13 and 21,734.81

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Solution

The fourth proportional to 36,838.40, 50,843.13 and 21,734.81 is: 29,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,838.40 : 50,843.13 = 21,734.81 : x
  2. Step 2: Convert to fraction form
    36,838.40/50,843.13 = 21,734.81/x
  3. Step 3: Cross multiply
    36,838.40x = 50,843.13 × 21,734.81
  4. Step 4: Simplify right side
    36,838.40x = 1,105,065,516.14
  5. Step 5: Solve for x
    x = 1,105,065,516.14/36,838.40
  6. Step 6: Final answer
    x = 29,997.66

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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.