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Finding the Fourth Proportional to 35,620.66, 53,414.22 and 20,834.08

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Solution

The fourth proportional to 35,620.66, 53,414.22 and 20,834.08 is: 31,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,620.66 : 53,414.22 = 20,834.08 : x
  2. Step 2: Convert to fraction form
    35,620.66/53,414.22 = 20,834.08/x
  3. Step 3: Cross multiply
    35,620.66x = 53,414.22 × 20,834.08
  4. Step 4: Simplify right side
    35,620.66x = 1,112,836,132.62
  5. Step 5: Solve for x
    x = 1,112,836,132.62/35,620.66
  6. Step 6: Final answer
    x = 31,241.31

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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.