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Finding the Fourth Proportional to 53,053.92, 79,682.40 and 33,372

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Solution

The fourth proportional to 53,053.92, 79,682.40 and 33,372 is: 50,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,053.92 : 79,682.40 = 33,372 : x
  2. Step 2: Convert to fraction form
    53,053.92/79,682.40 = 33,372/x
  3. Step 3: Cross multiply
    53,053.92x = 79,682.40 × 33,372
  4. Step 4: Simplify right side
    53,053.92x = 2,659,161,052.80
  5. Step 5: Solve for x
    x = 2,659,161,052.80/53,053.92
  6. Step 6: Final answer
    x = 50,121.86

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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.