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Finding the Fourth Proportional to 53,863.50, 80,810.61 and 18,332.61

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Solution

The fourth proportional to 53,863.50, 80,810.61 and 18,332.61 is: 27,504.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863.50 : 80,810.61 = 18,332.61 : x
  2. Step 2: Convert to fraction form
    53,863.50/80,810.61 = 18,332.61/x
  3. Step 3: Cross multiply
    53,863.50x = 80,810.61 × 18,332.61
  4. Step 4: Simplify right side
    53,863.50x = 1,481,469,396.99
  5. Step 5: Solve for x
    x = 1,481,469,396.99/53,863.50
  6. Step 6: Final answer
    x = 27,504.14

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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.