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Finding the Fourth Proportional to 3,269.98, 4,509.48 and 2,089

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Solution

The fourth proportional to 3,269.98, 4,509.48 and 2,089 is: 2,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.98 : 4,509.48 = 2,089 : x
  2. Step 2: Convert to fraction form
    3,269.98/4,509.48 = 2,089/x
  3. Step 3: Cross multiply
    3,269.98x = 4,509.48 × 2,089
  4. Step 4: Simplify right side
    3,269.98x = 9,420,303.72
  5. Step 5: Solve for x
    x = 9,420,303.72/3,269.98
  6. Step 6: Final answer
    x = 2,880.84

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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.