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Finding the Fourth Proportional to 3,704.54, 5,556.80 and 1,107.47

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Solution

The fourth proportional to 3,704.54, 5,556.80 and 1,107.47 is: 1,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.54 : 5,556.80 = 1,107.47 : x
  2. Step 2: Convert to fraction form
    3,704.54/5,556.80 = 1,107.47/x
  3. Step 3: Cross multiply
    3,704.54x = 5,556.80 × 1,107.47
  4. Step 4: Simplify right side
    3,704.54x = 6,154,005.96
  5. Step 5: Solve for x
    x = 6,154,005.96/3,704.54
  6. Step 6: Final answer
    x = 1,661.21

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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.