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Finding the Fourth Proportional to 14,956.50, 20,640.06 and 8,583.36

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Solution

The fourth proportional to 14,956.50, 20,640.06 and 8,583.36 is: 11,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.50 : 20,640.06 = 8,583.36 : x
  2. Step 2: Convert to fraction form
    14,956.50/20,640.06 = 8,583.36/x
  3. Step 3: Cross multiply
    14,956.50x = 20,640.06 × 8,583.36
  4. Step 4: Simplify right side
    14,956.50x = 177,161,065.40
  5. Step 5: Solve for x
    x = 177,161,065.40/14,956.50
  6. Step 6: Final answer
    x = 11,845.09

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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.