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Finding the Fourth Proportional to 5,003.88, 7,493.40 and 2,918.40

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Solution

The fourth proportional to 5,003.88, 7,493.40 and 2,918.40 is: 4,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.88 : 7,493.40 = 2,918.40 : x
  2. Step 2: Convert to fraction form
    5,003.88/7,493.40 = 2,918.40/x
  3. Step 3: Cross multiply
    5,003.88x = 7,493.40 × 2,918.40
  4. Step 4: Simplify right side
    5,003.88x = 21,868,738.56
  5. Step 5: Solve for x
    x = 21,868,738.56/5,003.88
  6. Step 6: Final answer
    x = 4,370.36

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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.