Home / 13,632.97-20,449.89-3,772.33

Finding the Fourth Proportional to 13,632.97, 20,449.89 and 3,772.33

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Solution

The fourth proportional to 13,632.97, 20,449.89 and 3,772.33 is: 5,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.97 : 20,449.89 = 3,772.33 : x
  2. Step 2: Convert to fraction form
    13,632.97/20,449.89 = 3,772.33/x
  3. Step 3: Cross multiply
    13,632.97x = 20,449.89 × 3,772.33
  4. Step 4: Simplify right side
    13,632.97x = 77,143,733.54
  5. Step 5: Solve for x
    x = 77,143,733.54/13,632.97
  6. Step 6: Final answer
    x = 5,658.62

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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.