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Finding the Fourth Proportional to 22,141.44, 30,555 and 12,069.88

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Solution

The fourth proportional to 22,141.44, 30,555 and 12,069.88 is: 16,656.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.44 : 30,555 = 12,069.88 : x
  2. Step 2: Convert to fraction form
    22,141.44/30,555 = 12,069.88/x
  3. Step 3: Cross multiply
    22,141.44x = 30,555 × 12,069.88
  4. Step 4: Simplify right side
    22,141.44x = 368,795,183.40
  5. Step 5: Solve for x
    x = 368,795,183.40/22,141.44
  6. Step 6: Final answer
    x = 16,656.33

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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.