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Finding the Fourth Proportional to 33,151.50, 45,749.79 and 18,247.50

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Solution

The fourth proportional to 33,151.50, 45,749.79 and 18,247.50 is: 25,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,151.50 : 45,749.79 = 18,247.50 : x
  2. Step 2: Convert to fraction form
    33,151.50/45,749.79 = 18,247.50/x
  3. Step 3: Cross multiply
    33,151.50x = 45,749.79 × 18,247.50
  4. Step 4: Simplify right side
    33,151.50x = 834,819,293.03
  5. Step 5: Solve for x
    x = 834,819,293.03/33,151.50
  6. Step 6: Final answer
    x = 25,181.95

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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.