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Finding the Fourth Proportional to 15,906.56, 21,950.93 and 8,832.96

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Solution

The fourth proportional to 15,906.56, 21,950.93 and 8,832.96 is: 12,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.56 : 21,950.93 = 8,832.96 : x
  2. Step 2: Convert to fraction form
    15,906.56/21,950.93 = 8,832.96/x
  3. Step 3: Cross multiply
    15,906.56x = 21,950.93 × 8,832.96
  4. Step 4: Simplify right side
    15,906.56x = 193,891,708.74
  5. Step 5: Solve for x
    x = 193,891,708.74/15,906.56
  6. Step 6: Final answer
    x = 12,189.42

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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.