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Finding the Fourth Proportional to 23,213.22, 34,819.77 and 8,422.11

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Solution

The fourth proportional to 23,213.22, 34,819.77 and 8,422.11 is: 12,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,213.22 : 34,819.77 = 8,422.11 : x
  2. Step 2: Convert to fraction form
    23,213.22/34,819.77 = 8,422.11/x
  3. Step 3: Cross multiply
    23,213.22x = 34,819.77 × 8,422.11
  4. Step 4: Simplify right side
    23,213.22x = 293,255,933.11
  5. Step 5: Solve for x
    x = 293,255,933.11/23,213.22
  6. Step 6: Final answer
    x = 12,633.14

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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.