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Finding the Fourth Proportional to 2,693.65, 4,040.57 and 746

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Solution

The fourth proportional to 2,693.65, 4,040.57 and 746 is: 1,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.65 : 4,040.57 = 746 : x
  2. Step 2: Convert to fraction form
    2,693.65/4,040.57 = 746/x
  3. Step 3: Cross multiply
    2,693.65x = 4,040.57 × 746
  4. Step 4: Simplify right side
    2,693.65x = 3,014,265.22
  5. Step 5: Solve for x
    x = 3,014,265.22/2,693.65
  6. Step 6: Final answer
    x = 1,119.03

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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.