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Finding the Fourth Proportional to 17,704.85, 26,561.90 and 6,611.63

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Solution

The fourth proportional to 17,704.85, 26,561.90 and 6,611.63 is: 9,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,704.85 : 26,561.90 = 6,611.63 : x
  2. Step 2: Convert to fraction form
    17,704.85/26,561.90 = 6,611.63/x
  3. Step 3: Cross multiply
    17,704.85x = 26,561.90 × 6,611.63
  4. Step 4: Simplify right side
    17,704.85x = 175,617,289.03
  5. Step 5: Solve for x
    x = 175,617,289.03/17,704.85
  6. Step 6: Final answer
    x = 9,919.17

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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.