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Finding the Fourth Proportional to 22,348.14, 30,836.99 and 12,914.88

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Solution

The fourth proportional to 22,348.14, 30,836.99 and 12,914.88 is: 17,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,348.14 : 30,836.99 = 12,914.88 : x
  2. Step 2: Convert to fraction form
    22,348.14/30,836.99 = 12,914.88/x
  3. Step 3: Cross multiply
    22,348.14x = 30,836.99 × 12,914.88
  4. Step 4: Simplify right side
    22,348.14x = 398,256,025.41
  5. Step 5: Solve for x
    x = 398,256,025.41/22,348.14
  6. Step 6: Final answer
    x = 17,820.54

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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.