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Finding the Fourth Proportional to 13,885.60, 20,833.20 and 6,093.28

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Solution

The fourth proportional to 13,885.60, 20,833.20 and 6,093.28 is: 9,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.60 : 20,833.20 = 6,093.28 : x
  2. Step 2: Convert to fraction form
    13,885.60/20,833.20 = 6,093.28/x
  3. Step 3: Cross multiply
    13,885.60x = 20,833.20 × 6,093.28
  4. Step 4: Simplify right side
    13,885.60x = 126,942,520.90
  5. Step 5: Solve for x
    x = 126,942,520.90/13,885.60
  6. Step 6: Final answer
    x = 9,142.03

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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.