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Finding the Fourth Proportional to 27,998.60, 41,997.90 and 26,270.60

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Solution

The fourth proportional to 27,998.60, 41,997.90 and 26,270.60 is: 39,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.60 : 41,997.90 = 26,270.60 : x
  2. Step 2: Convert to fraction form
    27,998.60/41,997.90 = 26,270.60/x
  3. Step 3: Cross multiply
    27,998.60x = 41,997.90 × 26,270.60
  4. Step 4: Simplify right side
    27,998.60x = 1,103,310,031.74
  5. Step 5: Solve for x
    x = 1,103,310,031.74/27,998.60
  6. Step 6: Final answer
    x = 39,405.90

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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.