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Finding the Fourth Proportional to 14,375.80, 19,836.25 and 8,323.89

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Solution

The fourth proportional to 14,375.80, 19,836.25 and 8,323.89 is: 11,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,375.80 : 19,836.25 = 8,323.89 : x
  2. Step 2: Convert to fraction form
    14,375.80/19,836.25 = 8,323.89/x
  3. Step 3: Cross multiply
    14,375.80x = 19,836.25 × 8,323.89
  4. Step 4: Simplify right side
    14,375.80x = 165,114,763.01
  5. Step 5: Solve for x
    x = 165,114,763.01/14,375.80
  6. Step 6: Final answer
    x = 11,485.61

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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.