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Finding the Fourth Proportional to 3,613.26, 4,986.30 and 1,957.26

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Solution

The fourth proportional to 3,613.26, 4,986.30 and 1,957.26 is: 2,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.26 : 4,986.30 = 1,957.26 : x
  2. Step 2: Convert to fraction form
    3,613.26/4,986.30 = 1,957.26/x
  3. Step 3: Cross multiply
    3,613.26x = 4,986.30 × 1,957.26
  4. Step 4: Simplify right side
    3,613.26x = 9,759,485.54
  5. Step 5: Solve for x
    x = 9,759,485.54/3,613.26
  6. Step 6: Final answer
    x = 2,701.02

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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.