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Finding the Fourth Proportional to 27,643.50, 41,471.73 and 9,175.50

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Solution

The fourth proportional to 27,643.50, 41,471.73 and 9,175.50 is: 13,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.50 : 41,471.73 = 9,175.50 : x
  2. Step 2: Convert to fraction form
    27,643.50/41,471.73 = 9,175.50/x
  3. Step 3: Cross multiply
    27,643.50x = 41,471.73 × 9,175.50
  4. Step 4: Simplify right side
    27,643.50x = 380,523,858.62
  5. Step 5: Solve for x
    x = 380,523,858.62/27,643.50
  6. Step 6: Final answer
    x = 13,765.40

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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.