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Finding the Fourth Proportional to 2,968.86, 4,453.11 and 888.87

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Solution

The fourth proportional to 2,968.86, 4,453.11 and 888.87 is: 1,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.86 : 4,453.11 = 888.87 : x
  2. Step 2: Convert to fraction form
    2,968.86/4,453.11 = 888.87/x
  3. Step 3: Cross multiply
    2,968.86x = 4,453.11 × 888.87
  4. Step 4: Simplify right side
    2,968.86x = 3,958,235.89
  5. Step 5: Solve for x
    x = 3,958,235.89/2,968.86
  6. Step 6: Final answer
    x = 1,333.25

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Why These Related Problems?

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