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Finding the Fourth Proportional to 14,855.44, 20,500.50 and 8,141.48

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Solution

The fourth proportional to 14,855.44, 20,500.50 and 8,141.48 is: 11,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.44 : 20,500.50 = 8,141.48 : x
  2. Step 2: Convert to fraction form
    14,855.44/20,500.50 = 8,141.48/x
  3. Step 3: Cross multiply
    14,855.44x = 20,500.50 × 8,141.48
  4. Step 4: Simplify right side
    14,855.44x = 166,904,410.74
  5. Step 5: Solve for x
    x = 166,904,410.74/14,855.44
  6. Step 6: Final answer
    x = 11,235.24

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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.