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Finding the Fourth Proportional to 17,637.28, 26,467.44 and 8,404

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Solution

The fourth proportional to 17,637.28, 26,467.44 and 8,404 is: 12,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,637.28 : 26,467.44 = 8,404 : x
  2. Step 2: Convert to fraction form
    17,637.28/26,467.44 = 8,404/x
  3. Step 3: Cross multiply
    17,637.28x = 26,467.44 × 8,404
  4. Step 4: Simplify right side
    17,637.28x = 222,432,365.76
  5. Step 5: Solve for x
    x = 222,432,365.76/17,637.28
  6. Step 6: Final answer
    x = 12,611.49

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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.