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Finding the Fourth Proportional to 17,992.88, 26,994.16 and 9,669.36

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Solution

The fourth proportional to 17,992.88, 26,994.16 and 9,669.36 is: 14,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.88 : 26,994.16 = 9,669.36 : x
  2. Step 2: Convert to fraction form
    17,992.88/26,994.16 = 9,669.36/x
  3. Step 3: Cross multiply
    17,992.88x = 26,994.16 × 9,669.36
  4. Step 4: Simplify right side
    17,992.88x = 261,016,250.94
  5. Step 5: Solve for x
    x = 261,016,250.94/17,992.88
  6. Step 6: Final answer
    x = 14,506.64

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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.