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Finding the Fourth Proportional to 19,069.80, 28,604.71 and 7,383.02

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Solution

The fourth proportional to 19,069.80, 28,604.71 and 7,383.02 is: 11,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.80 : 28,604.71 = 7,383.02 : x
  2. Step 2: Convert to fraction form
    19,069.80/28,604.71 = 7,383.02/x
  3. Step 3: Cross multiply
    19,069.80x = 28,604.71 × 7,383.02
  4. Step 4: Simplify right side
    19,069.80x = 211,189,222.43
  5. Step 5: Solve for x
    x = 211,189,222.43/19,069.80
  6. Step 6: Final answer
    x = 11,074.54

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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.