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Finding the Fourth Proportional to 2,693.81, 4,040.73 and 746.03

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Solution

The fourth proportional to 2,693.81, 4,040.73 and 746.03 is: 1,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.81 : 4,040.73 = 746.03 : x
  2. Step 2: Convert to fraction form
    2,693.81/4,040.73 = 746.03/x
  3. Step 3: Cross multiply
    2,693.81x = 4,040.73 × 746.03
  4. Step 4: Simplify right side
    2,693.81x = 3,014,515.90
  5. Step 5: Solve for x
    x = 3,014,515.90/2,693.81
  6. Step 6: Final answer
    x = 1,119.05

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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.