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Finding the Fourth Proportional to 17,187.66, 25,789.14 and 7,333.20

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Solution

The fourth proportional to 17,187.66, 25,789.14 and 7,333.20 is: 11,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.66 : 25,789.14 = 7,333.20 : x
  2. Step 2: Convert to fraction form
    17,187.66/25,789.14 = 7,333.20/x
  3. Step 3: Cross multiply
    17,187.66x = 25,789.14 × 7,333.20
  4. Step 4: Simplify right side
    17,187.66x = 189,116,921.45
  5. Step 5: Solve for x
    x = 189,116,921.45/17,187.66
  6. Step 6: Final answer
    x = 11,003.06

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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.