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Finding the Third Proportional to 1,393.75 and 2,083.75

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Solution

The third proportional to 1,393.75 and 2,083.75 is: 3,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.75 : 2,083.75 = 2,083.75 : x
  2. Step 2: Convert to fraction form
    1,393.75/2,083.75 = 2,083.75/x
  3. Step 3: Cross multiply
    1,393.75x = 2,083.75 × 2,083.75
  4. Step 4: Simplify right side
    1,393.75x = 4,342,014.06
  5. Step 5: Solve for x
    x = 4,342,014.06/1,393.75
  6. Step 6: Final answer
    x = 3,115.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.