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Finding the Fourth Proportional to 22,424.40, 33,620.40 and 12,566.70

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Solution

The fourth proportional to 22,424.40, 33,620.40 and 12,566.70 is: 18,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,424.40 : 33,620.40 = 12,566.70 : x
  2. Step 2: Convert to fraction form
    22,424.40/33,620.40 = 12,566.70/x
  3. Step 3: Cross multiply
    22,424.40x = 33,620.40 × 12,566.70
  4. Step 4: Simplify right side
    22,424.40x = 422,497,480.68
  5. Step 5: Solve for x
    x = 422,497,480.68/22,424.40
  6. Step 6: Final answer
    x = 18,840.97

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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.