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Finding the Fourth Proportional to 13,882.95, 20,824.22 and 3,352.88

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Solution

The fourth proportional to 13,882.95, 20,824.22 and 3,352.88 is: 5,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.95 : 20,824.22 = 3,352.88 : x
  2. Step 2: Convert to fraction form
    13,882.95/20,824.22 = 3,352.88/x
  3. Step 3: Cross multiply
    13,882.95x = 20,824.22 × 3,352.88
  4. Step 4: Simplify right side
    13,882.95x = 69,821,171.20
  5. Step 5: Solve for x
    x = 69,821,171.20/13,882.95
  6. Step 6: Final answer
    x = 5,029.27

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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.