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Finding the Fourth Proportional to 22,665.92, 33,993.75 and 8,620.96

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Solution

The fourth proportional to 22,665.92, 33,993.75 and 8,620.96 is: 12,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,665.92 : 33,993.75 = 8,620.96 : x
  2. Step 2: Convert to fraction form
    22,665.92/33,993.75 = 8,620.96/x
  3. Step 3: Cross multiply
    22,665.92x = 33,993.75 × 8,620.96
  4. Step 4: Simplify right side
    22,665.92x = 293,058,759
  5. Step 5: Solve for x
    x = 293,058,759/22,665.92
  6. Step 6: Final answer
    x = 12,929.49

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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.