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Finding the Fourth Proportional to 10,916.16, 16,376.22 and 6,241.44

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Solution

The fourth proportional to 10,916.16, 16,376.22 and 6,241.44 is: 9,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.16 : 16,376.22 = 6,241.44 : x
  2. Step 2: Convert to fraction form
    10,916.16/16,376.22 = 6,241.44/x
  3. Step 3: Cross multiply
    10,916.16x = 16,376.22 × 6,241.44
  4. Step 4: Simplify right side
    10,916.16x = 102,211,194.56
  5. Step 5: Solve for x
    x = 102,211,194.56/10,916.16
  6. Step 6: Final answer
    x = 9,363.29

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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.