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Finding the Fourth Proportional to 16,290.44, 22,480.80 and 8,838.44

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Solution

The fourth proportional to 16,290.44, 22,480.80 and 8,838.44 is: 12,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.44 : 22,480.80 = 8,838.44 : x
  2. Step 2: Convert to fraction form
    16,290.44/22,480.80 = 8,838.44/x
  3. Step 3: Cross multiply
    16,290.44x = 22,480.80 × 8,838.44
  4. Step 4: Simplify right side
    16,290.44x = 198,695,201.95
  5. Step 5: Solve for x
    x = 198,695,201.95/16,290.44
  6. Step 6: Final answer
    x = 12,197.04

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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.