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Finding the Fourth Proportional to 17,998.20, 26,964.90 and 15,924.60

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Solution

The fourth proportional to 17,998.20, 26,964.90 and 15,924.60 is: 23,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.20 : 26,964.90 = 15,924.60 : x
  2. Step 2: Convert to fraction form
    17,998.20/26,964.90 = 15,924.60/x
  3. Step 3: Cross multiply
    17,998.20x = 26,964.90 × 15,924.60
  4. Step 4: Simplify right side
    17,998.20x = 429,405,246.54
  5. Step 5: Solve for x
    x = 429,405,246.54/17,998.20
  6. Step 6: Final answer
    x = 23,858.23

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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.