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Finding the Fourth Proportional to 13,704.90, 20,558.91 and 7,474.02

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Solution

The fourth proportional to 13,704.90, 20,558.91 and 7,474.02 is: 11,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.90 : 20,558.91 = 7,474.02 : x
  2. Step 2: Convert to fraction form
    13,704.90/20,558.91 = 7,474.02/x
  3. Step 3: Cross multiply
    13,704.90x = 20,558.91 × 7,474.02
  4. Step 4: Simplify right side
    13,704.90x = 153,657,771.09
  5. Step 5: Solve for x
    x = 153,657,771.09/13,704.90
  6. Step 6: Final answer
    x = 11,211.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.