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Finding the Fourth Proportional to 67,651.03, 101,464.66 and 20,904.31

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Solution

The fourth proportional to 67,651.03, 101,464.66 and 20,904.31 is: 31,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,651.03 : 101,464.66 = 20,904.31 : x
  2. Step 2: Convert to fraction form
    67,651.03/101,464.66 = 20,904.31/x
  3. Step 3: Cross multiply
    67,651.03x = 101,464.66 × 20,904.31
  4. Step 4: Simplify right side
    67,651.03x = 2,121,048,706.68
  5. Step 5: Solve for x
    x = 2,121,048,706.68/67,651.03
  6. Step 6: Final answer
    x = 31,352.79

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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.