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Finding the Fourth Proportional to 57,891.24, 86,850.24 and 18,448.32

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Solution

The fourth proportional to 57,891.24, 86,850.24 and 18,448.32 is: 27,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,891.24 : 86,850.24 = 18,448.32 : x
  2. Step 2: Convert to fraction form
    57,891.24/86,850.24 = 18,448.32/x
  3. Step 3: Cross multiply
    57,891.24x = 86,850.24 × 18,448.32
  4. Step 4: Simplify right side
    57,891.24x = 1,602,241,019.60
  5. Step 5: Solve for x
    x = 1,602,241,019.60/57,891.24
  6. Step 6: Final answer
    x = 27,676.74

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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.