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Finding the Fourth Proportional to 12,080.26, 18,122.48 and 4,074.26

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Solution

The fourth proportional to 12,080.26, 18,122.48 and 4,074.26 is: 6,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.26 : 18,122.48 = 4,074.26 : x
  2. Step 2: Convert to fraction form
    12,080.26/18,122.48 = 4,074.26/x
  3. Step 3: Cross multiply
    12,080.26x = 18,122.48 × 4,074.26
  4. Step 4: Simplify right side
    12,080.26x = 73,835,695.36
  5. Step 5: Solve for x
    x = 73,835,695.36/12,080.26
  6. Step 6: Final answer
    x = 6,112.09

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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.