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Finding the Fourth Proportional to 53,963.92, 80,939.80 and 14,524.21

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Solution

The fourth proportional to 53,963.92, 80,939.80 and 14,524.21 is: 21,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,963.92 : 80,939.80 = 14,524.21 : x
  2. Step 2: Convert to fraction form
    53,963.92/80,939.80 = 14,524.21/x
  3. Step 3: Cross multiply
    53,963.92x = 80,939.80 × 14,524.21
  4. Step 4: Simplify right side
    53,963.92x = 1,175,586,652.56
  5. Step 5: Solve for x
    x = 1,175,586,652.56/53,963.92
  6. Step 6: Final answer
    x = 21,784.68

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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.