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Finding the Fourth Proportional to 21,994.73, 30,352.77 and 11,923.08

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Solution

The fourth proportional to 21,994.73, 30,352.77 and 11,923.08 is: 16,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.73 : 30,352.77 = 11,923.08 : x
  2. Step 2: Convert to fraction form
    21,994.73/30,352.77 = 11,923.08/x
  3. Step 3: Cross multiply
    21,994.73x = 30,352.77 × 11,923.08
  4. Step 4: Simplify right side
    21,994.73x = 361,898,504.93
  5. Step 5: Solve for x
    x = 361,898,504.93/21,994.73
  6. Step 6: Final answer
    x = 16,453.88

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1.5x scale

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.