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Finding the Fourth Proportional to 14,692,912.80, 22,039,369.20 and 10,640,839.20

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Solution

The fourth proportional to 14,692,912.80, 22,039,369.20 and 10,640,839.20 is: 15,961,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692,912.80 : 22,039,369.20 = 10,640,839.20 : x
  2. Step 2: Convert to fraction form
    14,692,912.80/22,039,369.20 = 10,640,839.20/x
  3. Step 3: Cross multiply
    14,692,912.80x = 22,039,369.20 × 10,640,839.20
  4. Step 4: Simplify right side
    14,692,912.80x = 234,517,383,726,632.62
  5. Step 5: Solve for x
    x = 234,517,383,726,632.62/14,692,912.80
  6. Step 6: Final answer
    x = 15,961,258.80

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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.