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Finding the Fourth Proportional to 17,956.22, 26,945.06 and 7,426.35

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Solution

The fourth proportional to 17,956.22, 26,945.06 and 7,426.35 is: 11,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,956.22 : 26,945.06 = 7,426.35 : x
  2. Step 2: Convert to fraction form
    17,956.22/26,945.06 = 7,426.35/x
  3. Step 3: Cross multiply
    17,956.22x = 26,945.06 × 7,426.35
  4. Step 4: Simplify right side
    17,956.22x = 200,103,409.20
  5. Step 5: Solve for x
    x = 200,103,409.20/17,956.22
  6. Step 6: Final answer
    x = 11,143.96

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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.