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Finding the Fourth Proportional to 8,916.44, 13,352.76 and 5,408.32

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Solution

The fourth proportional to 8,916.44, 13,352.76 and 5,408.32 is: 8,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.44 : 13,352.76 = 5,408.32 : x
  2. Step 2: Convert to fraction form
    8,916.44/13,352.76 = 5,408.32/x
  3. Step 3: Cross multiply
    8,916.44x = 13,352.76 × 5,408.32
  4. Step 4: Simplify right side
    8,916.44x = 72,215,998.96
  5. Step 5: Solve for x
    x = 72,215,998.96/8,916.44
  6. Step 6: Final answer
    x = 8,099.20

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1.5x scale

Why These Related Problems?

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