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Finding the Fourth Proportional to 1,992.48, 2,993.60 and 1,881.96

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Solution

The fourth proportional to 1,992.48, 2,993.60 and 1,881.96 is: 2,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.48 : 2,993.60 = 1,881.96 : x
  2. Step 2: Convert to fraction form
    1,992.48/2,993.60 = 1,881.96/x
  3. Step 3: Cross multiply
    1,992.48x = 2,993.60 × 1,881.96
  4. Step 4: Simplify right side
    1,992.48x = 5,633,835.46
  5. Step 5: Solve for x
    x = 5,633,835.46/1,992.48
  6. Step 6: Final answer
    x = 2,827.55

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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.