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Finding the Fourth Proportional to 35,644.50, 49,202.37 and 20,740.50

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Solution

The fourth proportional to 35,644.50, 49,202.37 and 20,740.50 is: 28,629.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,644.50 : 49,202.37 = 20,740.50 : x
  2. Step 2: Convert to fraction form
    35,644.50/49,202.37 = 20,740.50/x
  3. Step 3: Cross multiply
    35,644.50x = 49,202.37 × 20,740.50
  4. Step 4: Simplify right side
    35,644.50x = 1,020,481,754.99
  5. Step 5: Solve for x
    x = 1,020,481,754.99/35,644.50
  6. Step 6: Final answer
    x = 28,629.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.