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Finding the Fourth Proportional to 49,961.04, 74,934 and 18,789.04

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Solution

The fourth proportional to 49,961.04, 74,934 and 18,789.04 is: 28,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,961.04 : 74,934 = 18,789.04 : x
  2. Step 2: Convert to fraction form
    49,961.04/74,934 = 18,789.04/x
  3. Step 3: Cross multiply
    49,961.04x = 74,934 × 18,789.04
  4. Step 4: Simplify right side
    49,961.04x = 1,407,937,923.36
  5. Step 5: Solve for x
    x = 1,407,937,923.36/49,961.04
  6. Step 6: Final answer
    x = 28,180.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.