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Finding the Fourth Proportional to 9,956.00, 14,939.46 and 8,388.65

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Solution

The fourth proportional to 9,956.00, 14,939.46 and 8,388.65 is: 12,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.00 : 14,939.46 = 8,388.65 : x
  2. Step 2: Convert to fraction form
    9,956.00/14,939.46 = 8,388.65/x
  3. Step 3: Cross multiply
    9,956.00x = 14,939.46 × 8,388.65
  4. Step 4: Simplify right side
    9,956.00x = 125,321,826.43
  5. Step 5: Solve for x
    x = 125,321,826.43/9,956.00
  6. Step 6: Final answer
    x = 12,587.57

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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.