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Finding the Fourth Proportional to 14,120.95, 21,174.84 and 5,235.92

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Solution

The fourth proportional to 14,120.95, 21,174.84 and 5,235.92 is: 7,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.95 : 21,174.84 = 5,235.92 : x
  2. Step 2: Convert to fraction form
    14,120.95/21,174.84 = 5,235.92/x
  3. Step 3: Cross multiply
    14,120.95x = 21,174.84 × 5,235.92
  4. Step 4: Simplify right side
    14,120.95x = 110,869,696.96
  5. Step 5: Solve for x
    x = 110,869,696.96/14,120.95
  6. Step 6: Final answer
    x = 7,851.44

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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.