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Finding the Fourth Proportional to 19,074.44, 28,619.49 and 8,395.28

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Solution

The fourth proportional to 19,074.44, 28,619.49 and 8,395.28 is: 12,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.44 : 28,619.49 = 8,395.28 : x
  2. Step 2: Convert to fraction form
    19,074.44/28,619.49 = 8,395.28/x
  3. Step 3: Cross multiply
    19,074.44x = 28,619.49 × 8,395.28
  4. Step 4: Simplify right side
    19,074.44x = 240,268,632.01
  5. Step 5: Solve for x
    x = 240,268,632.01/19,074.44
  6. Step 6: Final answer
    x = 12,596.37

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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.