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Finding the Fourth Proportional to 7,321,432.62, 10,978,706.69 and 2,707,230.77

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Solution

The fourth proportional to 7,321,432.62, 10,978,706.69 and 2,707,230.77 is: 4,059,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321,432.62 : 10,978,706.69 = 2,707,230.77 : x
  2. Step 2: Convert to fraction form
    7,321,432.62/10,978,706.69 = 2,707,230.77/x
  3. Step 3: Cross multiply
    7,321,432.62x = 10,978,706.69 × 2,707,230.77
  4. Step 4: Simplify right side
    7,321,432.62x = 29,721,892,548,865.43
  5. Step 5: Solve for x
    x = 29,721,892,548,865.43/7,321,432.62
  6. Step 6: Final answer
    x = 4,059,573.32

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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.