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Finding the Fourth Proportional to 7,954,761.53, 11,940,491.49 and 7,049,734.12

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Solution

The fourth proportional to 7,954,761.53, 11,940,491.49 and 7,049,734.12 is: 10,582,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954,761.53 : 11,940,491.49 = 7,049,734.12 : x
  2. Step 2: Convert to fraction form
    7,954,761.53/11,940,491.49 = 7,049,734.12/x
  3. Step 3: Cross multiply
    7,954,761.53x = 11,940,491.49 × 7,049,734.12
  4. Step 4: Simplify right side
    7,954,761.53x = 84,177,290,294,766.50
  5. Step 5: Solve for x
    x = 84,177,290,294,766.50/7,954,761.53
  6. Step 6: Final answer
    x = 10,582,000.47

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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.