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Finding the Fourth Proportional to 17,399.94, 26,099.94 and 12,228.90

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Solution

The fourth proportional to 17,399.94, 26,099.94 and 12,228.90 is: 18,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,399.94 : 26,099.94 = 12,228.90 : x
  2. Step 2: Convert to fraction form
    17,399.94/26,099.94 = 12,228.90/x
  3. Step 3: Cross multiply
    17,399.94x = 26,099.94 × 12,228.90
  4. Step 4: Simplify right side
    17,399.94x = 319,173,556.27
  5. Step 5: Solve for x
    x = 319,173,556.27/17,399.94
  6. Step 6: Final answer
    x = 18,343.37

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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.