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Finding the Fourth Proportional to 36,492.78, 50,360.10 and 19,725.78

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Solution

The fourth proportional to 36,492.78, 50,360.10 and 19,725.78 is: 27,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,492.78 : 50,360.10 = 19,725.78 : x
  2. Step 2: Convert to fraction form
    36,492.78/50,360.10 = 19,725.78/x
  3. Step 3: Cross multiply
    36,492.78x = 50,360.10 × 19,725.78
  4. Step 4: Simplify right side
    36,492.78x = 993,392,253.38
  5. Step 5: Solve for x
    x = 993,392,253.38/36,492.78
  6. Step 6: Final answer
    x = 27,221.61

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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.