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Finding the Fourth Proportional to 22,459,306.87, 30,993,936.87 and 12,146,029.97

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Solution

The fourth proportional to 22,459,306.87, 30,993,936.87 and 12,146,029.97 is: 16,761,571.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,459,306.87 : 30,993,936.87 = 12,146,029.97 : x
  2. Step 2: Convert to fraction form
    22,459,306.87/30,993,936.87 = 12,146,029.97/x
  3. Step 3: Cross multiply
    22,459,306.87x = 30,993,936.87 × 12,146,029.97
  4. Step 4: Simplify right side
    22,459,306.87x = 376,453,286,076,705.94
  5. Step 5: Solve for x
    x = 376,453,286,076,705.94/22,459,306.87
  6. Step 6: Final answer
    x = 16,761,571.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.