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Finding the Fourth Proportional to 41,636.80, 62,455.20 and 40,664.80

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Solution

The fourth proportional to 41,636.80, 62,455.20 and 40,664.80 is: 60,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,636.80 : 62,455.20 = 40,664.80 : x
  2. Step 2: Convert to fraction form
    41,636.80/62,455.20 = 40,664.80/x
  3. Step 3: Cross multiply
    41,636.80x = 62,455.20 × 40,664.80
  4. Step 4: Simplify right side
    41,636.80x = 2,539,728,216.96
  5. Step 5: Solve for x
    x = 2,539,728,216.96/41,636.80
  6. Step 6: Final answer
    x = 60,997.20

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1.5x scale

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.