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Finding the Fourth Proportional to 18,430.45, 27,642.94 and 9,067.95

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Solution

The fourth proportional to 18,430.45, 27,642.94 and 9,067.95 is: 13,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.45 : 27,642.94 = 9,067.95 : x
  2. Step 2: Convert to fraction form
    18,430.45/27,642.94 = 9,067.95/x
  3. Step 3: Cross multiply
    18,430.45x = 27,642.94 × 9,067.95
  4. Step 4: Simplify right side
    18,430.45x = 250,664,797.77
  5. Step 5: Solve for x
    x = 250,664,797.77/18,430.45
  6. Step 6: Final answer
    x = 13,600.58

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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.