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Finding the Fourth Proportional to 7,408.90, 11,137.65 and 5,232.70

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Solution

The fourth proportional to 7,408.90, 11,137.65 and 5,232.70 is: 7,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.90 : 11,137.65 = 5,232.70 : x
  2. Step 2: Convert to fraction form
    7,408.90/11,137.65 = 5,232.70/x
  3. Step 3: Cross multiply
    7,408.90x = 11,137.65 × 5,232.70
  4. Step 4: Simplify right side
    7,408.90x = 58,279,981.16
  5. Step 5: Solve for x
    x = 58,279,981.16/7,408.90
  6. Step 6: Final answer
    x = 7,866.21

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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.