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Finding the Fourth Proportional to 1,994.41, 2,992.01 and 824.58

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Solution

The fourth proportional to 1,994.41, 2,992.01 and 824.58 is: 1,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.41 : 2,992.01 = 824.58 : x
  2. Step 2: Convert to fraction form
    1,994.41/2,992.01 = 824.58/x
  3. Step 3: Cross multiply
    1,994.41x = 2,992.01 × 824.58
  4. Step 4: Simplify right side
    1,994.41x = 2,467,147.48
  5. Step 5: Solve for x
    x = 2,467,147.48/1,994.41
  6. Step 6: Final answer
    x = 1,237.03

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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.