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Finding the Fourth Proportional to 35,371.63, 48,819.78 and 20,274.41

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Solution

The fourth proportional to 35,371.63, 48,819.78 and 20,274.41 is: 27,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,371.63 : 48,819.78 = 20,274.41 : x
  2. Step 2: Convert to fraction form
    35,371.63/48,819.78 = 20,274.41/x
  3. Step 3: Cross multiply
    35,371.63x = 48,819.78 × 20,274.41
  4. Step 4: Simplify right side
    35,371.63x = 989,792,235.83
  5. Step 5: Solve for x
    x = 989,792,235.83/35,371.63
  6. Step 6: Final answer
    x = 27,982.66

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Why These Related Problems?

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