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Finding the Fourth Proportional to 9,062,912.70, 13,594,369.05 and 5,479,731.90

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Solution

The fourth proportional to 9,062,912.70, 13,594,369.05 and 5,479,731.90 is: 8,219,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,062,912.70 : 13,594,369.05 = 5,479,731.90 : x
  2. Step 2: Convert to fraction form
    9,062,912.70/13,594,369.05 = 5,479,731.90/x
  3. Step 3: Cross multiply
    9,062,912.70x = 13,594,369.05 × 5,479,731.90
  4. Step 4: Simplify right side
    9,062,912.70x = 74,493,497,743,657.70
  5. Step 5: Solve for x
    x = 74,493,497,743,657.70/9,062,912.70
  6. Step 6: Final answer
    x = 8,219,597.85

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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.