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Finding the Fourth Proportional to 12,453.25, 17,185.37 and 6,788.00

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Solution

The fourth proportional to 12,453.25, 17,185.37 and 6,788.00 is: 9,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.25 : 17,185.37 = 6,788.00 : x
  2. Step 2: Convert to fraction form
    12,453.25/17,185.37 = 6,788.00/x
  3. Step 3: Cross multiply
    12,453.25x = 17,185.37 × 6,788.00
  4. Step 4: Simplify right side
    12,453.25x = 116,654,274.05
  5. Step 5: Solve for x
    x = 116,654,274.05/12,453.25
  6. Step 6: Final answer
    x = 9,367.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.