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Finding the Fourth Proportional to 27,656.31, 41,479.88 and 11,863.88

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Solution

The fourth proportional to 27,656.31, 41,479.88 and 11,863.88 is: 17,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.31 : 41,479.88 = 11,863.88 : x
  2. Step 2: Convert to fraction form
    27,656.31/41,479.88 = 11,863.88/x
  3. Step 3: Cross multiply
    27,656.31x = 41,479.88 × 11,863.88
  4. Step 4: Simplify right side
    27,656.31x = 492,112,052.02
  5. Step 5: Solve for x
    x = 492,112,052.02/27,656.31
  6. Step 6: Final answer
    x = 17,793.84

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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.