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Finding the Fourth Proportional to 17,906.36, 26,859.70 and 7,373.88

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Solution

The fourth proportional to 17,906.36, 26,859.70 and 7,373.88 is: 11,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,906.36 : 26,859.70 = 7,373.88 : x
  2. Step 2: Convert to fraction form
    17,906.36/26,859.70 = 7,373.88/x
  3. Step 3: Cross multiply
    17,906.36x = 26,859.70 × 7,373.88
  4. Step 4: Simplify right side
    17,906.36x = 198,060,204.64
  5. Step 5: Solve for x
    x = 198,060,204.64/17,906.36
  6. Step 6: Final answer
    x = 11,060.89

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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.