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Finding the Fourth Proportional to 2,014.93, 3,021.99 and 698.68

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Solution

The fourth proportional to 2,014.93, 3,021.99 and 698.68 is: 1,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.93 : 3,021.99 = 698.68 : x
  2. Step 2: Convert to fraction form
    2,014.93/3,021.99 = 698.68/x
  3. Step 3: Cross multiply
    2,014.93x = 3,021.99 × 698.68
  4. Step 4: Simplify right side
    2,014.93x = 2,111,403.97
  5. Step 5: Solve for x
    x = 2,111,403.97/2,014.93
  6. Step 6: Final answer
    x = 1,047.88

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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.