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Finding the Fourth Proportional to 11,245.58, 16,842.13 and 8,889.77

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Solution

The fourth proportional to 11,245.58, 16,842.13 and 8,889.77 is: 13,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.58 : 16,842.13 = 8,889.77 : x
  2. Step 2: Convert to fraction form
    11,245.58/16,842.13 = 8,889.77/x
  3. Step 3: Cross multiply
    11,245.58x = 16,842.13 × 8,889.77
  4. Step 4: Simplify right side
    11,245.58x = 149,722,662.01
  5. Step 5: Solve for x
    x = 149,722,662.01/11,245.58
  6. Step 6: Final answer
    x = 13,313.91

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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.