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Finding the Fourth Proportional to 13,591.99, 20,394.95 and 6,195.49

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Solution

The fourth proportional to 13,591.99, 20,394.95 and 6,195.49 is: 9,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.99 : 20,394.95 = 6,195.49 : x
  2. Step 2: Convert to fraction form
    13,591.99/20,394.95 = 6,195.49/x
  3. Step 3: Cross multiply
    13,591.99x = 20,394.95 × 6,195.49
  4. Step 4: Simplify right side
    13,591.99x = 126,356,708.78
  5. Step 5: Solve for x
    x = 126,356,708.78/13,591.99
  6. Step 6: Final answer
    x = 9,296.41

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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.