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Finding the Fourth Proportional to 17,392.98, 26,078.13 and 11,451.89

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Solution

The fourth proportional to 17,392.98, 26,078.13 and 11,451.89 is: 17,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,392.98 : 26,078.13 = 11,451.89 : x
  2. Step 2: Convert to fraction form
    17,392.98/26,078.13 = 11,451.89/x
  3. Step 3: Cross multiply
    17,392.98x = 26,078.13 × 11,451.89
  4. Step 4: Simplify right side
    17,392.98x = 298,643,941.36
  5. Step 5: Solve for x
    x = 298,643,941.36/17,392.98
  6. Step 6: Final answer
    x = 17,170.37

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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.