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Finding the Fourth Proportional to 2,992.13, 4,481.22 and 2,888.31

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Solution

The fourth proportional to 2,992.13, 4,481.22 and 2,888.31 is: 4,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.13 : 4,481.22 = 2,888.31 : x
  2. Step 2: Convert to fraction form
    2,992.13/4,481.22 = 2,888.31/x
  3. Step 3: Cross multiply
    2,992.13x = 4,481.22 × 2,888.31
  4. Step 4: Simplify right side
    2,992.13x = 12,943,152.54
  5. Step 5: Solve for x
    x = 12,943,152.54/2,992.13
  6. Step 6: Final answer
    x = 4,325.74

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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.