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Finding the Fourth Proportional to 18,091.50, 27,103.50 and 10,673.93

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Solution

The fourth proportional to 18,091.50, 27,103.50 and 10,673.93 is: 15,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.50 : 27,103.50 = 10,673.93 : x
  2. Step 2: Convert to fraction form
    18,091.50/27,103.50 = 10,673.93/x
  3. Step 3: Cross multiply
    18,091.50x = 27,103.50 × 10,673.93
  4. Step 4: Simplify right side
    18,091.50x = 289,300,726.24
  5. Step 5: Solve for x
    x = 289,300,726.24/18,091.50
  6. Step 6: Final answer
    x = 15,990.98

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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.