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Finding the Fourth Proportional to 26,742, 36,865.36 and 18,759.44

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Solution

The fourth proportional to 26,742, 36,865.36 and 18,759.44 is: 25,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,742 : 36,865.36 = 18,759.44 : x
  2. Step 2: Convert to fraction form
    26,742/36,865.36 = 18,759.44/x
  3. Step 3: Cross multiply
    26,742x = 36,865.36 × 18,759.44
  4. Step 4: Simplify right side
    26,742x = 691,573,509.00
  5. Step 5: Solve for x
    x = 691,573,509.00/26,742
  6. Step 6: Final answer
    x = 25,860.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.