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Finding the Fourth Proportional to 23,606.61, 35,431.79 and 11,928.03

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Solution

The fourth proportional to 23,606.61, 35,431.79 and 11,928.03 is: 17,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,606.61 : 35,431.79 = 11,928.03 : x
  2. Step 2: Convert to fraction form
    23,606.61/35,431.79 = 11,928.03/x
  3. Step 3: Cross multiply
    23,606.61x = 35,431.79 × 11,928.03
  4. Step 4: Simplify right side
    23,606.61x = 422,631,394.43
  5. Step 5: Solve for x
    x = 422,631,394.43/23,606.61
  6. Step 6: Final answer
    x = 17,903.10

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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.