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Finding the Fourth Proportional to 22,168.40, 33,245.40 and 7,374.80

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Solution

The fourth proportional to 22,168.40, 33,245.40 and 7,374.80 is: 11,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,168.40 : 33,245.40 = 7,374.80 : x
  2. Step 2: Convert to fraction form
    22,168.40/33,245.40 = 7,374.80/x
  3. Step 3: Cross multiply
    22,168.40x = 33,245.40 × 7,374.80
  4. Step 4: Simplify right side
    22,168.40x = 245,178,175.92
  5. Step 5: Solve for x
    x = 245,178,175.92/22,168.40
  6. Step 6: Final answer
    x = 11,059.80

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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.