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Finding the Fourth Proportional to 12,168.22, 18,252.35 and 2,934.22

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Solution

The fourth proportional to 12,168.22, 18,252.35 and 2,934.22 is: 4,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.22 : 18,252.35 = 2,934.22 : x
  2. Step 2: Convert to fraction form
    12,168.22/18,252.35 = 2,934.22/x
  3. Step 3: Cross multiply
    12,168.22x = 18,252.35 × 2,934.22
  4. Step 4: Simplify right side
    12,168.22x = 53,556,395.75
  5. Step 5: Solve for x
    x = 53,556,395.75/12,168.22
  6. Step 6: Final answer
    x = 4,401.33

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Similar ratio
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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.