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Finding the Fourth Proportional to 3,804.54, 5,708.46 and 1,613.76

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Solution

The fourth proportional to 3,804.54, 5,708.46 and 1,613.76 is: 2,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,804.54 : 5,708.46 = 1,613.76 : x
  2. Step 2: Convert to fraction form
    3,804.54/5,708.46 = 1,613.76/x
  3. Step 3: Cross multiply
    3,804.54x = 5,708.46 × 1,613.76
  4. Step 4: Simplify right side
    3,804.54x = 9,212,084.41
  5. Step 5: Solve for x
    x = 9,212,084.41/3,804.54
  6. Step 6: Final answer
    x = 2,421.34

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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.