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Finding the Fourth Proportional to 21,794.80, 30,093.72 and 16,751.04

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Solution

The fourth proportional to 21,794.80, 30,093.72 and 16,751.04 is: 23,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794.80 : 30,093.72 = 16,751.04 : x
  2. Step 2: Convert to fraction form
    21,794.80/30,093.72 = 16,751.04/x
  3. Step 3: Cross multiply
    21,794.80x = 30,093.72 × 16,751.04
  4. Step 4: Simplify right side
    21,794.80x = 504,101,107.47
  5. Step 5: Solve for x
    x = 504,101,107.47/21,794.80
  6. Step 6: Final answer
    x = 23,129.42

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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.