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Finding the Fourth Proportional to 49,087, 73,620.78 and 14,020.48

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Solution

The fourth proportional to 49,087, 73,620.78 and 14,020.48 is: 21,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,087 : 73,620.78 = 14,020.48 : x
  2. Step 2: Convert to fraction form
    49,087/73,620.78 = 14,020.48/x
  3. Step 3: Cross multiply
    49,087x = 73,620.78 × 14,020.48
  4. Step 4: Simplify right side
    49,087x = 1,032,198,673.57
  5. Step 5: Solve for x
    x = 1,032,198,673.57/49,087
  6. Step 6: Final answer
    x = 21,027.94

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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.