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Finding the Fourth Proportional to 18,710.76, 28,049.94 and 8,844.96

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Solution

The fourth proportional to 18,710.76, 28,049.94 and 8,844.96 is: 13,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.76 : 28,049.94 = 8,844.96 : x
  2. Step 2: Convert to fraction form
    18,710.76/28,049.94 = 8,844.96/x
  3. Step 3: Cross multiply
    18,710.76x = 28,049.94 × 8,844.96
  4. Step 4: Simplify right side
    18,710.76x = 248,100,597.30
  5. Step 5: Solve for x
    x = 248,100,597.30/18,710.76
  6. Step 6: Final answer
    x = 13,259.78

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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.