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Finding the Fourth Proportional to 17,406.88, 26,127.60 and 13,553.44

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Solution

The fourth proportional to 17,406.88, 26,127.60 and 13,553.44 is: 20,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,406.88 : 26,127.60 = 13,553.44 : x
  2. Step 2: Convert to fraction form
    17,406.88/26,127.60 = 13,553.44/x
  3. Step 3: Cross multiply
    17,406.88x = 26,127.60 × 13,553.44
  4. Step 4: Simplify right side
    17,406.88x = 354,118,858.94
  5. Step 5: Solve for x
    x = 354,118,858.94/17,406.88
  6. Step 6: Final answer
    x = 20,343.61

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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.