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Finding the Fourth Proportional to 15,906.38, 21,950.87 and 8,833.32

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Solution

The fourth proportional to 15,906.38, 21,950.87 and 8,833.32 is: 12,190.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.38 : 21,950.87 = 8,833.32 : x
  2. Step 2: Convert to fraction form
    15,906.38/21,950.87 = 8,833.32/x
  3. Step 3: Cross multiply
    15,906.38x = 21,950.87 × 8,833.32
  4. Step 4: Simplify right side
    15,906.38x = 193,899,014.82
  5. Step 5: Solve for x
    x = 193,899,014.82/15,906.38
  6. Step 6: Final answer
    x = 12,190.02

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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.