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Finding the Fourth Proportional to 17,956.97, 26,931.41 and 6,859.70

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Solution

The fourth proportional to 17,956.97, 26,931.41 and 6,859.70 is: 10,288.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,956.97 : 26,931.41 = 6,859.70 : x
  2. Step 2: Convert to fraction form
    17,956.97/26,931.41 = 6,859.70/x
  3. Step 3: Cross multiply
    17,956.97x = 26,931.41 × 6,859.70
  4. Step 4: Simplify right side
    17,956.97x = 184,741,358.88
  5. Step 5: Solve for x
    x = 184,741,358.88/17,956.97
  6. Step 6: Final answer
    x = 10,288.00

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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.