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Finding the Fourth Proportional to 40,712.80, 60,982.80 and 33,800.80

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Solution

The fourth proportional to 40,712.80, 60,982.80 and 33,800.80 is: 50,629.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,712.80 : 60,982.80 = 33,800.80 : x
  2. Step 2: Convert to fraction form
    40,712.80/60,982.80 = 33,800.80/x
  3. Step 3: Cross multiply
    40,712.80x = 60,982.80 × 33,800.80
  4. Step 4: Simplify right side
    40,712.80x = 2,061,267,426.24
  5. Step 5: Solve for x
    x = 2,061,267,426.24/40,712.80
  6. Step 6: Final answer
    x = 50,629.47

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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.