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Finding the Fourth Proportional to 11,168.82, 16,753.60 and 5,619.14

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Solution

The fourth proportional to 11,168.82, 16,753.60 and 5,619.14 is: 8,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.82 : 16,753.60 = 5,619.14 : x
  2. Step 2: Convert to fraction form
    11,168.82/16,753.60 = 5,619.14/x
  3. Step 3: Cross multiply
    11,168.82x = 16,753.60 × 5,619.14
  4. Step 4: Simplify right side
    11,168.82x = 94,140,823.90
  5. Step 5: Solve for x
    x = 94,140,823.90/11,168.82
  6. Step 6: Final answer
    x = 8,428.90

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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.