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Finding the Fourth Proportional to 27,040.70, 37,315.77 and 15,104.21

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Solution

The fourth proportional to 27,040.70, 37,315.77 and 15,104.21 is: 20,843.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,040.70 : 37,315.77 = 15,104.21 : x
  2. Step 2: Convert to fraction form
    27,040.70/37,315.77 = 15,104.21/x
  3. Step 3: Cross multiply
    27,040.70x = 37,315.77 × 15,104.21
  4. Step 4: Simplify right side
    27,040.70x = 563,625,226.39
  5. Step 5: Solve for x
    x = 563,625,226.39/27,040.70
  6. Step 6: Final answer
    x = 20,843.59

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