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Finding the Fourth Proportional to 11,873.89, 17,807.49 and 3,551.92

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Solution

The fourth proportional to 11,873.89, 17,807.49 and 3,551.92 is: 5,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.89 : 17,807.49 = 3,551.92 : x
  2. Step 2: Convert to fraction form
    11,873.89/17,807.49 = 3,551.92/x
  3. Step 3: Cross multiply
    11,873.89x = 17,807.49 × 3,551.92
  4. Step 4: Simplify right side
    11,873.89x = 63,250,779.88
  5. Step 5: Solve for x
    x = 63,250,779.88/11,873.89
  6. Step 6: Final answer
    x = 5,326.88

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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.