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Finding the Fourth Proportional to 18,608, 25,679.04 and 10,224.56

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Solution

The fourth proportional to 18,608, 25,679.04 and 10,224.56 is: 14,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608 : 25,679.04 = 10,224.56 : x
  2. Step 2: Convert to fraction form
    18,608/25,679.04 = 10,224.56/x
  3. Step 3: Cross multiply
    18,608x = 25,679.04 × 10,224.56
  4. Step 4: Simplify right side
    18,608x = 262,556,885.22
  5. Step 5: Solve for x
    x = 262,556,885.22/18,608
  6. Step 6: Final answer
    x = 14,109.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.