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Finding the Fourth Proportional to 26,896.40, 40,365.60 and 18,634.40

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Solution

The fourth proportional to 26,896.40, 40,365.60 and 18,634.40 is: 27,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,896.40 : 40,365.60 = 18,634.40 : x
  2. Step 2: Convert to fraction form
    26,896.40/40,365.60 = 18,634.40/x
  3. Step 3: Cross multiply
    26,896.40x = 40,365.60 × 18,634.40
  4. Step 4: Simplify right side
    26,896.40x = 752,188,736.64
  5. Step 5: Solve for x
    x = 752,188,736.64/26,896.40
  6. Step 6: Final answer
    x = 27,966.15

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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.