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Finding the Fourth Proportional to 3,609.36, 4,980.21 and 2,037.15

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Solution

The fourth proportional to 3,609.36, 4,980.21 and 2,037.15 is: 2,810.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.36 : 4,980.21 = 2,037.15 : x
  2. Step 2: Convert to fraction form
    3,609.36/4,980.21 = 2,037.15/x
  3. Step 3: Cross multiply
    3,609.36x = 4,980.21 × 2,037.15
  4. Step 4: Simplify right side
    3,609.36x = 10,145,434.80
  5. Step 5: Solve for x
    x = 10,145,434.80/3,609.36
  6. Step 6: Final answer
    x = 2,810.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.