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Finding the Fourth Proportional to 17,611.40, 26,410.70 and 8,843.40

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Solution

The fourth proportional to 17,611.40, 26,410.70 and 8,843.40 is: 13,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.40 : 26,410.70 = 8,843.40 : x
  2. Step 2: Convert to fraction form
    17,611.40/26,410.70 = 8,843.40/x
  3. Step 3: Cross multiply
    17,611.40x = 26,410.70 × 8,843.40
  4. Step 4: Simplify right side
    17,611.40x = 233,560,384.38
  5. Step 5: Solve for x
    x = 233,560,384.38/17,611.40
  6. Step 6: Final answer
    x = 13,261.89

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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.