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Finding the Fourth Proportional to 11,276.57, 16,895.41 and 7,474.88

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Solution

The fourth proportional to 11,276.57, 16,895.41 and 7,474.88 is: 11,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.57 : 16,895.41 = 7,474.88 : x
  2. Step 2: Convert to fraction form
    11,276.57/16,895.41 = 7,474.88/x
  3. Step 3: Cross multiply
    11,276.57x = 16,895.41 × 7,474.88
  4. Step 4: Simplify right side
    11,276.57x = 126,291,162.30
  5. Step 5: Solve for x
    x = 126,291,162.30/11,276.57
  6. Step 6: Final answer
    x = 11,199.43

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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.