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Finding the Fourth Proportional to 17,611.55, 26,426.01 and 8,249.95

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Solution

The fourth proportional to 17,611.55, 26,426.01 and 8,249.95 is: 12,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.55 : 26,426.01 = 8,249.95 : x
  2. Step 2: Convert to fraction form
    17,611.55/26,426.01 = 8,249.95/x
  3. Step 3: Cross multiply
    17,611.55x = 26,426.01 × 8,249.95
  4. Step 4: Simplify right side
    17,611.55x = 218,013,290.36
  5. Step 5: Solve for x
    x = 218,013,290.36/17,611.55
  6. Step 6: Final answer
    x = 12,378.99

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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.