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Finding the Fourth Proportional to 1,744.68, 2,408.12 and 1,081.16

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Solution

The fourth proportional to 1,744.68, 2,408.12 and 1,081.16 is: 1,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.68 : 2,408.12 = 1,081.16 : x
  2. Step 2: Convert to fraction form
    1,744.68/2,408.12 = 1,081.16/x
  3. Step 3: Cross multiply
    1,744.68x = 2,408.12 × 1,081.16
  4. Step 4: Simplify right side
    1,744.68x = 2,603,563.02
  5. Step 5: Solve for x
    x = 2,603,563.02/1,744.68
  6. Step 6: Final answer
    x = 1,492.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.