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Finding the Fourth Proportional to 13,418.01, 20,140.25 and 10,074.65

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Solution

The fourth proportional to 13,418.01, 20,140.25 and 10,074.65 is: 15,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.01 : 20,140.25 = 10,074.65 : x
  2. Step 2: Convert to fraction form
    13,418.01/20,140.25 = 10,074.65/x
  3. Step 3: Cross multiply
    13,418.01x = 20,140.25 × 10,074.65
  4. Step 4: Simplify right side
    13,418.01x = 202,905,818.59
  5. Step 5: Solve for x
    x = 202,905,818.59/13,418.01
  6. Step 6: Final answer
    x = 15,121.90

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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.