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Finding the Fourth Proportional to 28,993.25, 39,710.89 and 27,291.03

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Solution

The fourth proportional to 28,993.25, 39,710.89 and 27,291.03 is: 37,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.25 : 39,710.89 = 27,291.03 : x
  2. Step 2: Convert to fraction form
    28,993.25/39,710.89 = 27,291.03/x
  3. Step 3: Cross multiply
    28,993.25x = 39,710.89 × 27,291.03
  4. Step 4: Simplify right side
    28,993.25x = 1,083,751,022.09
  5. Step 5: Solve for x
    x = 1,083,751,022.09/28,993.25
  6. Step 6: Final answer
    x = 37,379.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.