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Finding the Fourth Proportional to 27,221.70, 37,566 and 15,285

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Solution

The fourth proportional to 27,221.70, 37,566 and 15,285 is: 21,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.70 : 37,566 = 15,285 : x
  2. Step 2: Convert to fraction form
    27,221.70/37,566 = 15,285/x
  3. Step 3: Cross multiply
    27,221.70x = 37,566 × 15,285
  4. Step 4: Simplify right side
    27,221.70x = 574,196,310
  5. Step 5: Solve for x
    x = 574,196,310/27,221.70
  6. Step 6: Final answer
    x = 21,093.33

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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.