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Finding the Fourth Proportional to 12,068.55, 18,102.83 and 6,163.65

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Solution

The fourth proportional to 12,068.55, 18,102.83 and 6,163.65 is: 9,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.55 : 18,102.83 = 6,163.65 : x
  2. Step 2: Convert to fraction form
    12,068.55/18,102.83 = 6,163.65/x
  3. Step 3: Cross multiply
    12,068.55x = 18,102.83 × 6,163.65
  4. Step 4: Simplify right side
    12,068.55x = 111,579,477.31
  5. Step 5: Solve for x
    x = 111,579,477.31/12,068.55
  6. Step 6: Final answer
    x = 9,245.48

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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.