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Finding the Fourth Proportional to 27,147.69, 37,467.77 and 15,211.84

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Solution

The fourth proportional to 27,147.69, 37,467.77 and 15,211.84 is: 20,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,147.69 : 37,467.77 = 15,211.84 : x
  2. Step 2: Convert to fraction form
    27,147.69/37,467.77 = 15,211.84/x
  3. Step 3: Cross multiply
    27,147.69x = 37,467.77 × 15,211.84
  4. Step 4: Simplify right side
    27,147.69x = 569,953,722.40
  5. Step 5: Solve for x
    x = 569,953,722.40/27,147.69
  6. Step 6: Final answer
    x = 20,994.56

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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.