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Finding the Fourth Proportional to 11,476.78, 17,216.97 and 4,903

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Solution

The fourth proportional to 11,476.78, 17,216.97 and 4,903 is: 7,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.78 : 17,216.97 = 4,903 : x
  2. Step 2: Convert to fraction form
    11,476.78/17,216.97 = 4,903/x
  3. Step 3: Cross multiply
    11,476.78x = 17,216.97 × 4,903
  4. Step 4: Simplify right side
    11,476.78x = 84,414,803.91
  5. Step 5: Solve for x
    x = 84,414,803.91/11,476.78
  6. Step 6: Final answer
    x = 7,355.27

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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.