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Finding the Fourth Proportional to 33,217.50, 45,840.15 and 18,313.50

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Solution

The fourth proportional to 33,217.50, 45,840.15 and 18,313.50 is: 25,272.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,217.50 : 45,840.15 = 18,313.50 : x
  2. Step 2: Convert to fraction form
    33,217.50/45,840.15 = 18,313.50/x
  3. Step 3: Cross multiply
    33,217.50x = 45,840.15 × 18,313.50
  4. Step 4: Simplify right side
    33,217.50x = 839,493,587.03
  5. Step 5: Solve for x
    x = 839,493,587.03/33,217.50
  6. Step 6: Final answer
    x = 25,272.63

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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.