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Finding the Fourth Proportional to 35,880.87, 53,786.18 and 13,375.07

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Solution

The fourth proportional to 35,880.87, 53,786.18 and 13,375.07 is: 20,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.87 : 53,786.18 = 13,375.07 : x
  2. Step 2: Convert to fraction form
    35,880.87/53,786.18 = 13,375.07/x
  3. Step 3: Cross multiply
    35,880.87x = 53,786.18 × 13,375.07
  4. Step 4: Simplify right side
    35,880.87x = 719,394,116.05
  5. Step 5: Solve for x
    x = 719,394,116.05/35,880.87
  6. Step 6: Final answer
    x = 20,049.51

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Why These Related Problems?

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