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Finding the Fourth Proportional to 18,710.26, 28,049.19 and 8,844.46

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Solution

The fourth proportional to 18,710.26, 28,049.19 and 8,844.46 is: 13,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.26 : 28,049.19 = 8,844.46 : x
  2. Step 2: Convert to fraction form
    18,710.26/28,049.19 = 8,844.46/x
  3. Step 3: Cross multiply
    18,710.26x = 28,049.19 × 8,844.46
  4. Step 4: Simplify right side
    18,710.26x = 248,079,938.99
  5. Step 5: Solve for x
    x = 248,079,938.99/18,710.26
  6. Step 6: Final answer
    x = 13,259.03

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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.