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Finding the Fourth Proportional to 17,757.70, 26,611.15 and 13,040.70

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Solution

The fourth proportional to 17,757.70, 26,611.15 and 13,040.70 is: 19,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,757.70 : 26,611.15 = 13,040.70 : x
  2. Step 2: Convert to fraction form
    17,757.70/26,611.15 = 13,040.70/x
  3. Step 3: Cross multiply
    17,757.70x = 26,611.15 × 13,040.70
  4. Step 4: Simplify right side
    17,757.70x = 347,027,915.86
  5. Step 5: Solve for x
    x = 347,027,915.86/17,757.70
  6. Step 6: Final answer
    x = 19,542.39

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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.