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Finding the Fourth Proportional to 13,933.50, 20,900.25 and 4,699.50

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Solution

The fourth proportional to 13,933.50, 20,900.25 and 4,699.50 is: 7,049.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.50 : 20,900.25 = 4,699.50 : x
  2. Step 2: Convert to fraction form
    13,933.50/20,900.25 = 4,699.50/x
  3. Step 3: Cross multiply
    13,933.50x = 20,900.25 × 4,699.50
  4. Step 4: Simplify right side
    13,933.50x = 98,220,724.88
  5. Step 5: Solve for x
    x = 98,220,724.88/13,933.50
  6. Step 6: Final answer
    x = 7,049.25

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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.