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Finding the Fourth Proportional to 14,622.80, 21,940.07 and 7,227.09

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Solution

The fourth proportional to 14,622.80, 21,940.07 and 7,227.09 is: 10,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.80 : 21,940.07 = 7,227.09 : x
  2. Step 2: Convert to fraction form
    14,622.80/21,940.07 = 7,227.09/x
  3. Step 3: Cross multiply
    14,622.80x = 21,940.07 × 7,227.09
  4. Step 4: Simplify right side
    14,622.80x = 158,562,824.36
  5. Step 5: Solve for x
    x = 158,562,824.36/14,622.80
  6. Step 6: Final answer
    x = 10,843.54

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1.5x scale

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.