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Finding the Fourth Proportional to 49,251.79, 73,881.78 and 19,653.48

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Solution

The fourth proportional to 49,251.79, 73,881.78 and 19,653.48 is: 29,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,251.79 : 73,881.78 = 19,653.48 : x
  2. Step 2: Convert to fraction form
    49,251.79/73,881.78 = 19,653.48/x
  3. Step 3: Cross multiply
    49,251.79x = 73,881.78 × 19,653.48
  4. Step 4: Simplify right side
    49,251.79x = 1,452,034,085.59
  5. Step 5: Solve for x
    x = 1,452,034,085.59/49,251.79
  6. Step 6: Final answer
    x = 29,481.86

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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.