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Finding the Fourth Proportional to 53,763.71, 80,661.97 and 27,486.91

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Solution

The fourth proportional to 53,763.71, 80,661.97 and 27,486.91 is: 41,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,763.71 : 80,661.97 = 27,486.91 : x
  2. Step 2: Convert to fraction form
    53,763.71/80,661.97 = 27,486.91/x
  3. Step 3: Cross multiply
    53,763.71x = 80,661.97 × 27,486.91
  4. Step 4: Simplify right side
    53,763.71x = 2,217,148,295.44
  5. Step 5: Solve for x
    x = 2,217,148,295.44/53,763.71
  6. Step 6: Final answer
    x = 41,238.75

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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.