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Finding the Fourth Proportional to 22,336.72, 33,486.21 and 18,388.21

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Solution

The fourth proportional to 22,336.72, 33,486.21 and 18,388.21 is: 27,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,336.72 : 33,486.21 = 18,388.21 : x
  2. Step 2: Convert to fraction form
    22,336.72/33,486.21 = 18,388.21/x
  3. Step 3: Cross multiply
    22,336.72x = 33,486.21 × 18,388.21
  4. Step 4: Simplify right side
    22,336.72x = 615,751,461.58
  5. Step 5: Solve for x
    x = 615,751,461.58/22,336.72
  6. Step 6: Final answer
    x = 27,566.78

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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.