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Finding the Fourth Proportional to 18,456.74, 27,624.90 and 14,049.89

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Solution

The fourth proportional to 18,456.74, 27,624.90 and 14,049.89 is: 21,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.74 : 27,624.90 = 14,049.89 : x
  2. Step 2: Convert to fraction form
    18,456.74/27,624.90 = 14,049.89/x
  3. Step 3: Cross multiply
    18,456.74x = 27,624.90 × 14,049.89
  4. Step 4: Simplify right side
    18,456.74x = 388,126,806.26
  5. Step 5: Solve for x
    x = 388,126,806.26/18,456.74
  6. Step 6: Final answer
    x = 21,029.00

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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.