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Finding the Fourth Proportional to 2,894.51, 3,994.18 and 1,635.67

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Solution

The fourth proportional to 2,894.51, 3,994.18 and 1,635.67 is: 2,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.51 : 3,994.18 = 1,635.67 : x
  2. Step 2: Convert to fraction form
    2,894.51/3,994.18 = 1,635.67/x
  3. Step 3: Cross multiply
    2,894.51x = 3,994.18 × 1,635.67
  4. Step 4: Simplify right side
    2,894.51x = 6,533,161.30
  5. Step 5: Solve for x
    x = 6,533,161.30/2,894.51
  6. Step 6: Final answer
    x = 2,257.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.