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Finding the Fourth Proportional to 33,309.80, 45,966.74 and 18,201.80

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Solution

The fourth proportional to 33,309.80, 45,966.74 and 18,201.80 is: 25,118.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.80 : 45,966.74 = 18,201.80 : x
  2. Step 2: Convert to fraction form
    33,309.80/45,966.74 = 18,201.80/x
  3. Step 3: Cross multiply
    33,309.80x = 45,966.74 × 18,201.80
  4. Step 4: Simplify right side
    33,309.80x = 836,677,408.13
  5. Step 5: Solve for x
    x = 836,677,408.13/33,309.80
  6. Step 6: Final answer
    x = 25,118.06

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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.