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Finding the Fourth Proportional to 17,751.33, 26,623.35 and 8,387.37

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Solution

The fourth proportional to 17,751.33, 26,623.35 and 8,387.37 is: 12,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751.33 : 26,623.35 = 8,387.37 : x
  2. Step 2: Convert to fraction form
    17,751.33/26,623.35 = 8,387.37/x
  3. Step 3: Cross multiply
    17,751.33x = 26,623.35 × 8,387.37
  4. Step 4: Simplify right side
    17,751.33x = 223,299,887.09
  5. Step 5: Solve for x
    x = 223,299,887.09/17,751.33
  6. Step 6: Final answer
    x = 12,579.33

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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.