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Finding the Fourth Proportional to 11,801.92, 17,696.79 and 3,480.88

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Solution

The fourth proportional to 11,801.92, 17,696.79 and 3,480.88 is: 5,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.92 : 17,696.79 = 3,480.88 : x
  2. Step 2: Convert to fraction form
    11,801.92/17,696.79 = 3,480.88/x
  3. Step 3: Cross multiply
    11,801.92x = 17,696.79 × 3,480.88
  4. Step 4: Simplify right side
    11,801.92x = 61,600,340.73
  5. Step 5: Solve for x
    x = 61,600,340.73/11,801.92
  6. Step 6: Final answer
    x = 5,219.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.