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Finding the Fourth Proportional to 22,169.50, 33,255.77 and 7,388.72

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Solution

The fourth proportional to 22,169.50, 33,255.77 and 7,388.72 is: 11,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,169.50 : 33,255.77 = 7,388.72 : x
  2. Step 2: Convert to fraction form
    22,169.50/33,255.77 = 7,388.72/x
  3. Step 3: Cross multiply
    22,169.50x = 33,255.77 × 7,388.72
  4. Step 4: Simplify right side
    22,169.50x = 245,717,494.40
  5. Step 5: Solve for x
    x = 245,717,494.40/22,169.50
  6. Step 6: Final answer
    x = 11,083.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.