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Finding the Fourth Proportional to 26,811.21, 40,211.54 and 9,040.14

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Solution

The fourth proportional to 26,811.21, 40,211.54 and 9,040.14 is: 13,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.21 : 40,211.54 = 9,040.14 : x
  2. Step 2: Convert to fraction form
    26,811.21/40,211.54 = 9,040.14/x
  3. Step 3: Cross multiply
    26,811.21x = 40,211.54 × 9,040.14
  4. Step 4: Simplify right side
    26,811.21x = 363,517,906.01
  5. Step 5: Solve for x
    x = 363,517,906.01/26,811.21
  6. Step 6: Final answer
    x = 13,558.43

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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.