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Finding the Fourth Proportional to 2,185.41, 3,015.19 and 1,241.16

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Solution

The fourth proportional to 2,185.41, 3,015.19 and 1,241.16 is: 1,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.41 : 3,015.19 = 1,241.16 : x
  2. Step 2: Convert to fraction form
    2,185.41/3,015.19 = 1,241.16/x
  3. Step 3: Cross multiply
    2,185.41x = 3,015.19 × 1,241.16
  4. Step 4: Simplify right side
    2,185.41x = 3,742,333.22
  5. Step 5: Solve for x
    x = 3,742,333.22/2,185.41
  6. Step 6: Final answer
    x = 1,712.42

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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.