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Finding the Fourth Proportional to 26,997.20, 40,481.40 and 11,397.20

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Solution

The fourth proportional to 26,997.20, 40,481.40 and 11,397.20 is: 17,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,997.20 : 40,481.40 = 11,397.20 : x
  2. Step 2: Convert to fraction form
    26,997.20/40,481.40 = 11,397.20/x
  3. Step 3: Cross multiply
    26,997.20x = 40,481.40 × 11,397.20
  4. Step 4: Simplify right side
    26,997.20x = 461,374,612.08
  5. Step 5: Solve for x
    x = 461,374,612.08/26,997.20
  6. Step 6: Final answer
    x = 17,089.72

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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.