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Finding the Fourth Proportional to 2,048.75, 3,073.13 and 1,399.13

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Solution

The fourth proportional to 2,048.75, 3,073.13 and 1,399.13 is: 2,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.75 : 3,073.13 = 1,399.13 : x
  2. Step 2: Convert to fraction form
    2,048.75/3,073.13 = 1,399.13/x
  3. Step 3: Cross multiply
    2,048.75x = 3,073.13 × 1,399.13
  4. Step 4: Simplify right side
    2,048.75x = 4,299,708.38
  5. Step 5: Solve for x
    x = 4,299,708.38/2,048.75
  6. Step 6: Final answer
    x = 2,098.70

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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.