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Finding the Fourth Proportional to 26,743.44, 40,173.18 and 20,911.44

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Solution

The fourth proportional to 26,743.44, 40,173.18 and 20,911.44 is: 31,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,743.44 : 40,173.18 = 20,911.44 : x
  2. Step 2: Convert to fraction form
    26,743.44/40,173.18 = 20,911.44/x
  3. Step 3: Cross multiply
    26,743.44x = 40,173.18 × 20,911.44
  4. Step 4: Simplify right side
    26,743.44x = 840,079,043.18
  5. Step 5: Solve for x
    x = 840,079,043.18/26,743.44
  6. Step 6: Final answer
    x = 31,412.53

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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.