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Finding the Fourth Proportional to 33,069.78, 45,625.92 and 18,919.92

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Solution

The fourth proportional to 33,069.78, 45,625.92 and 18,919.92 is: 26,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,069.78 : 45,625.92 = 18,919.92 : x
  2. Step 2: Convert to fraction form
    33,069.78/45,625.92 = 18,919.92/x
  3. Step 3: Cross multiply
    33,069.78x = 45,625.92 × 18,919.92
  4. Step 4: Simplify right side
    33,069.78x = 863,238,756.33
  5. Step 5: Solve for x
    x = 863,238,756.33/33,069.78
  6. Step 6: Final answer
    x = 26,103.55

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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.