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Finding the Fourth Proportional to 22,660.90, 33,993.65 and 10,812.65

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Solution

The fourth proportional to 22,660.90, 33,993.65 and 10,812.65 is: 16,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.90 : 33,993.65 = 10,812.65 : x
  2. Step 2: Convert to fraction form
    22,660.90/33,993.65 = 10,812.65/x
  3. Step 3: Cross multiply
    22,660.90x = 33,993.65 × 10,812.65
  4. Step 4: Simplify right side
    22,660.90x = 367,561,296.74
  5. Step 5: Solve for x
    x = 367,561,296.74/22,660.90
  6. Step 6: Final answer
    x = 16,220.07

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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.