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Finding the Fourth Proportional to 7,408.16, 10,219.22 and 4,755.96

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Solution

The fourth proportional to 7,408.16, 10,219.22 and 4,755.96 is: 6,560.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.16 : 10,219.22 = 4,755.96 : x
  2. Step 2: Convert to fraction form
    7,408.16/10,219.22 = 4,755.96/x
  3. Step 3: Cross multiply
    7,408.16x = 10,219.22 × 4,755.96
  4. Step 4: Simplify right side
    7,408.16x = 48,602,177.77
  5. Step 5: Solve for x
    x = 48,602,177.77/7,408.16
  6. Step 6: Final answer
    x = 6,560.63

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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.