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Finding the Fourth Proportional to 2,039.76, 3,059.84 and 741.33

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Solution

The fourth proportional to 2,039.76, 3,059.84 and 741.33 is: 1,112.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.76 : 3,059.84 = 741.33 : x
  2. Step 2: Convert to fraction form
    2,039.76/3,059.84 = 741.33/x
  3. Step 3: Cross multiply
    2,039.76x = 3,059.84 × 741.33
  4. Step 4: Simplify right side
    2,039.76x = 2,268,351.19
  5. Step 5: Solve for x
    x = 2,268,351.19/2,039.76
  6. Step 6: Final answer
    x = 1,112.07

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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.