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Finding the Fourth Proportional to 33,310.80, 45,968.12 and 18,202.80

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Solution

The fourth proportional to 33,310.80, 45,968.12 and 18,202.80 is: 25,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,310.80 : 45,968.12 = 18,202.80 : x
  2. Step 2: Convert to fraction form
    33,310.80/45,968.12 = 18,202.80/x
  3. Step 3: Cross multiply
    33,310.80x = 45,968.12 × 18,202.80
  4. Step 4: Simplify right side
    33,310.80x = 836,748,494.74
  5. Step 5: Solve for x
    x = 836,748,494.74/33,310.80
  6. Step 6: Final answer
    x = 25,119.44

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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.