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Finding the Fourth Proportional to 40,628.16, 60,964.11 and 40,504.50

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Solution

The fourth proportional to 40,628.16, 60,964.11 and 40,504.50 is: 60,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,628.16 : 60,964.11 = 40,504.50 : x
  2. Step 2: Convert to fraction form
    40,628.16/60,964.11 = 40,504.50/x
  3. Step 3: Cross multiply
    40,628.16x = 60,964.11 × 40,504.50
  4. Step 4: Simplify right side
    40,628.16x = 2,469,320,793.50
  5. Step 5: Solve for x
    x = 2,469,320,793.50/40,628.16
  6. Step 6: Final answer
    x = 60,778.55

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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.