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Finding the Fourth Proportional to 17,623.42, 26,415.99 and 8,257.60

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Solution

The fourth proportional to 17,623.42, 26,415.99 and 8,257.60 is: 12,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,623.42 : 26,415.99 = 8,257.60 : x
  2. Step 2: Convert to fraction form
    17,623.42/26,415.99 = 8,257.60/x
  3. Step 3: Cross multiply
    17,623.42x = 26,415.99 × 8,257.60
  4. Step 4: Simplify right side
    17,623.42x = 218,132,679.02
  5. Step 5: Solve for x
    x = 218,132,679.02/17,623.42
  6. Step 6: Final answer
    x = 12,377.43

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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.