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Finding the Fourth Proportional to 33,118.88, 45,704.05 and 18,214.88

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Solution

The fourth proportional to 33,118.88, 45,704.05 and 18,214.88 is: 25,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,118.88 : 45,704.05 = 18,214.88 : x
  2. Step 2: Convert to fraction form
    33,118.88/45,704.05 = 18,214.88/x
  3. Step 3: Cross multiply
    33,118.88x = 45,704.05 × 18,214.88
  4. Step 4: Simplify right side
    33,118.88x = 832,493,512.21
  5. Step 5: Solve for x
    x = 832,493,512.21/33,118.88
  6. Step 6: Final answer
    x = 25,136.53

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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.