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Finding the Fourth Proportional to 2,693.72, 4,040.60 and 746.07

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Solution

The fourth proportional to 2,693.72, 4,040.60 and 746.07 is: 1,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.72 : 4,040.60 = 746.07 : x
  2. Step 2: Convert to fraction form
    2,693.72/4,040.60 = 746.07/x
  3. Step 3: Cross multiply
    2,693.72x = 4,040.60 × 746.07
  4. Step 4: Simplify right side
    2,693.72x = 3,014,566.71
  5. Step 5: Solve for x
    x = 3,014,566.71/2,693.72
  6. Step 6: Final answer
    x = 1,119.11

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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.