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Finding the Fourth Proportional to 17,270.51, 25,881.77 and 7,887.07

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Solution

The fourth proportional to 17,270.51, 25,881.77 and 7,887.07 is: 11,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,270.51 : 25,881.77 = 7,887.07 : x
  2. Step 2: Convert to fraction form
    17,270.51/25,881.77 = 7,887.07/x
  3. Step 3: Cross multiply
    17,270.51x = 25,881.77 × 7,887.07
  4. Step 4: Simplify right side
    17,270.51x = 204,131,202.31
  5. Step 5: Solve for x
    x = 204,131,202.31/17,270.51
  6. Step 6: Final answer
    x = 11,819.64

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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.