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Finding the Fourth Proportional to 10,961.44, 16,458.56 and 8,763.68

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Solution

The fourth proportional to 10,961.44, 16,458.56 and 8,763.68 is: 13,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.44 : 16,458.56 = 8,763.68 : x
  2. Step 2: Convert to fraction form
    10,961.44/16,458.56 = 8,763.68/x
  3. Step 3: Cross multiply
    10,961.44x = 16,458.56 × 8,763.68
  4. Step 4: Simplify right side
    10,961.44x = 144,237,553.10
  5. Step 5: Solve for x
    x = 144,237,553.10/10,961.44
  6. Step 6: Final answer
    x = 13,158.63

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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.