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Finding the Fourth Proportional to 13,892.64, 20,832.48 and 8,050.92

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Solution

The fourth proportional to 13,892.64, 20,832.48 and 8,050.92 is: 12,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.64 : 20,832.48 = 8,050.92 : x
  2. Step 2: Convert to fraction form
    13,892.64/20,832.48 = 8,050.92/x
  3. Step 3: Cross multiply
    13,892.64x = 20,832.48 × 8,050.92
  4. Step 4: Simplify right side
    13,892.64x = 167,720,629.88
  5. Step 5: Solve for x
    x = 167,720,629.88/13,892.64
  6. Step 6: Final answer
    x = 12,072.62

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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.