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Finding the Fourth Proportional to 13,352.44, 20,028.44 and 3,992.48

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Solution

The fourth proportional to 13,352.44, 20,028.44 and 3,992.48 is: 5,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.44 : 20,028.44 = 3,992.48 : x
  2. Step 2: Convert to fraction form
    13,352.44/20,028.44 = 3,992.48/x
  3. Step 3: Cross multiply
    13,352.44x = 20,028.44 × 3,992.48
  4. Step 4: Simplify right side
    13,352.44x = 79,963,146.13
  5. Step 5: Solve for x
    x = 79,963,146.13/13,352.44
  6. Step 6: Final answer
    x = 5,988.65

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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.