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Finding the Fourth Proportional to 22,443.70, 33,664.32 and 6,861.32

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Solution

The fourth proportional to 22,443.70, 33,664.32 and 6,861.32 is: 10,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.70 : 33,664.32 = 6,861.32 : x
  2. Step 2: Convert to fraction form
    22,443.70/33,664.32 = 6,861.32/x
  3. Step 3: Cross multiply
    22,443.70x = 33,664.32 × 6,861.32
  4. Step 4: Simplify right side
    22,443.70x = 230,981,672.10
  5. Step 5: Solve for x
    x = 230,981,672.10/22,443.70
  6. Step 6: Final answer
    x = 10,291.60

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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.