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Finding the Fourth Proportional to 17,076.48, 25,611.84 and 5,388

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Solution

The fourth proportional to 17,076.48, 25,611.84 and 5,388 is: 8,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,076.48 : 25,611.84 = 5,388 : x
  2. Step 2: Convert to fraction form
    17,076.48/25,611.84 = 5,388/x
  3. Step 3: Cross multiply
    17,076.48x = 25,611.84 × 5,388
  4. Step 4: Simplify right side
    17,076.48x = 137,996,593.92
  5. Step 5: Solve for x
    x = 137,996,593.92/17,076.48
  6. Step 6: Final answer
    x = 8,081.09

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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.