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Finding the Fourth Proportional to 14,961.08, 20,645.48 and 8,245.37

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Solution

The fourth proportional to 14,961.08, 20,645.48 and 8,245.37 is: 11,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.08 : 20,645.48 = 8,245.37 : x
  2. Step 2: Convert to fraction form
    14,961.08/20,645.48 = 8,245.37/x
  3. Step 3: Cross multiply
    14,961.08x = 20,645.48 × 8,245.37
  4. Step 4: Simplify right side
    14,961.08x = 170,229,476.97
  5. Step 5: Solve for x
    x = 170,229,476.97/14,961.08
  6. Step 6: Final answer
    x = 11,378.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.