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Finding the Fourth Proportional to 1,994.16, 2,751.80 and 1,109.92

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Solution

The fourth proportional to 1,994.16, 2,751.80 and 1,109.92 is: 1,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.16 : 2,751.80 = 1,109.92 : x
  2. Step 2: Convert to fraction form
    1,994.16/2,751.80 = 1,109.92/x
  3. Step 3: Cross multiply
    1,994.16x = 2,751.80 × 1,109.92
  4. Step 4: Simplify right side
    1,994.16x = 3,054,277.86
  5. Step 5: Solve for x
    x = 3,054,277.86/1,994.16
  6. Step 6: Final answer
    x = 1,531.61

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