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Finding the Fourth Proportional to 17,990.70, 26,998.20 and 10,093.20

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Solution

The fourth proportional to 17,990.70, 26,998.20 and 10,093.20 is: 15,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.70 : 26,998.20 = 10,093.20 : x
  2. Step 2: Convert to fraction form
    17,990.70/26,998.20 = 10,093.20/x
  3. Step 3: Cross multiply
    17,990.70x = 26,998.20 × 10,093.20
  4. Step 4: Simplify right side
    17,990.70x = 272,498,232.24
  5. Step 5: Solve for x
    x = 272,498,232.24/17,990.70
  6. Step 6: Final answer
    x = 15,146.62

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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.