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Finding the Fourth Proportional to 27,171.99, 40,759.20 and 7,450.11

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Solution

The fourth proportional to 27,171.99, 40,759.20 and 7,450.11 is: 11,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,171.99 : 40,759.20 = 7,450.11 : x
  2. Step 2: Convert to fraction form
    27,171.99/40,759.20 = 7,450.11/x
  3. Step 3: Cross multiply
    27,171.99x = 40,759.20 × 7,450.11
  4. Step 4: Simplify right side
    27,171.99x = 303,660,523.51
  5. Step 5: Solve for x
    x = 303,660,523.51/27,171.99
  6. Step 6: Final answer
    x = 11,175.50

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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.