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Finding the Fourth Proportional to 18,509.94, 27,704.43 and 10,063.80

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Solution

The fourth proportional to 18,509.94, 27,704.43 and 10,063.80 is: 15,062.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.94 : 27,704.43 = 10,063.80 : x
  2. Step 2: Convert to fraction form
    18,509.94/27,704.43 = 10,063.80/x
  3. Step 3: Cross multiply
    18,509.94x = 27,704.43 × 10,063.80
  4. Step 4: Simplify right side
    18,509.94x = 278,811,842.63
  5. Step 5: Solve for x
    x = 278,811,842.63/18,509.94
  6. Step 6: Final answer
    x = 15,062.82

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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.