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Finding the Fourth Proportional to 5,368.62, 7,408.74 and 3,132.06

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Solution

The fourth proportional to 5,368.62, 7,408.74 and 3,132.06 is: 4,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.62 : 7,408.74 = 3,132.06 : x
  2. Step 2: Convert to fraction form
    5,368.62/7,408.74 = 3,132.06/x
  3. Step 3: Cross multiply
    5,368.62x = 7,408.74 × 3,132.06
  4. Step 4: Simplify right side
    5,368.62x = 23,204,618.20
  5. Step 5: Solve for x
    x = 23,204,618.20/5,368.62
  6. Step 6: Final answer
    x = 4,322.27

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