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Finding the Fourth Proportional to 23,615.69, 35,431.43 and 9,578.79

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Solution

The fourth proportional to 23,615.69, 35,431.43 and 9,578.79 is: 14,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,615.69 : 35,431.43 = 9,578.79 : x
  2. Step 2: Convert to fraction form
    23,615.69/35,431.43 = 9,578.79/x
  3. Step 3: Cross multiply
    23,615.69x = 35,431.43 × 9,578.79
  4. Step 4: Simplify right side
    23,615.69x = 339,390,179.48
  5. Step 5: Solve for x
    x = 339,390,179.48/23,615.69
  6. Step 6: Final answer
    x = 14,371.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.