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Finding the Fourth Proportional to 2,679.04, 4,012.04 and 1,855

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Solution

The fourth proportional to 2,679.04, 4,012.04 and 1,855 is: 2,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.04 : 4,012.04 = 1,855 : x
  2. Step 2: Convert to fraction form
    2,679.04/4,012.04 = 1,855/x
  3. Step 3: Cross multiply
    2,679.04x = 4,012.04 × 1,855
  4. Step 4: Simplify right side
    2,679.04x = 7,442,334.20
  5. Step 5: Solve for x
    x = 7,442,334.20/2,679.04
  6. Step 6: Final answer
    x = 2,777.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.