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Finding the Fourth Proportional to 22,407.77, 30,922.73 and 12,336.21

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Solution

The fourth proportional to 22,407.77, 30,922.73 and 12,336.21 is: 17,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.77 : 30,922.73 = 12,336.21 : x
  2. Step 2: Convert to fraction form
    22,407.77/30,922.73 = 12,336.21/x
  3. Step 3: Cross multiply
    22,407.77x = 30,922.73 × 12,336.21
  4. Step 4: Simplify right side
    22,407.77x = 381,469,291.05
  5. Step 5: Solve for x
    x = 381,469,291.05/22,407.77
  6. Step 6: Final answer
    x = 17,023.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.