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Finding the Fourth Proportional to 18,914,574.06, 28,375,846.29 and 6,134,082.21

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Solution

The fourth proportional to 18,914,574.06, 28,375,846.29 and 6,134,082.21 is: 9,202,415.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914,574.06 : 28,375,846.29 = 6,134,082.21 : x
  2. Step 2: Convert to fraction form
    18,914,574.06/28,375,846.29 = 6,134,082.21/x
  3. Step 3: Cross multiply
    18,914,574.06x = 28,375,846.29 × 6,134,082.21
  4. Step 4: Simplify right side
    18,914,574.06x = 174,059,773,921,183.50
  5. Step 5: Solve for x
    x = 174,059,773,921,183.50/18,914,574.06
  6. Step 6: Final answer
    x = 9,202,415.73

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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.