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Finding the Fourth Proportional to 30,396.36, 41,964.52 and 23,169.52

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Solution

The fourth proportional to 30,396.36, 41,964.52 and 23,169.52 is: 31,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.36 : 41,964.52 = 23,169.52 : x
  2. Step 2: Convert to fraction form
    30,396.36/41,964.52 = 23,169.52/x
  3. Step 3: Cross multiply
    30,396.36x = 41,964.52 × 23,169.52
  4. Step 4: Simplify right side
    30,396.36x = 972,297,785.43
  5. Step 5: Solve for x
    x = 972,297,785.43/30,396.36
  6. Step 6: Final answer
    x = 31,987.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.