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Finding the Fourth Proportional to 11,927.88, 17,900.04 and 4,908.36

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Solution

The fourth proportional to 11,927.88, 17,900.04 and 4,908.36 is: 7,365.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.88 : 17,900.04 = 4,908.36 : x
  2. Step 2: Convert to fraction form
    11,927.88/17,900.04 = 4,908.36/x
  3. Step 3: Cross multiply
    11,927.88x = 17,900.04 × 4,908.36
  4. Step 4: Simplify right side
    11,927.88x = 87,859,840.33
  5. Step 5: Solve for x
    x = 87,859,840.33/11,927.88
  6. Step 6: Final answer
    x = 7,365.92

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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.