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Finding the Fourth Proportional to 17,100.79, 25,659.30 and 11,843.89

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Solution

The fourth proportional to 17,100.79, 25,659.30 and 11,843.89 is: 17,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,100.79 : 25,659.30 = 11,843.89 : x
  2. Step 2: Convert to fraction form
    17,100.79/25,659.30 = 11,843.89/x
  3. Step 3: Cross multiply
    17,100.79x = 25,659.30 × 11,843.89
  4. Step 4: Simplify right side
    17,100.79x = 303,905,798.38
  5. Step 5: Solve for x
    x = 303,905,798.38/17,100.79
  6. Step 6: Final answer
    x = 17,771.45

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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.