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Finding the Fourth Proportional to 54,015.80, 80,829.30 and 36,519.80

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Solution

The fourth proportional to 54,015.80, 80,829.30 and 36,519.80 is: 54,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.80 : 80,829.30 = 36,519.80 : x
  2. Step 2: Convert to fraction form
    54,015.80/80,829.30 = 36,519.80/x
  3. Step 3: Cross multiply
    54,015.80x = 80,829.30 × 36,519.80
  4. Step 4: Simplify right side
    54,015.80x = 2,951,869,870.14
  5. Step 5: Solve for x
    x = 2,951,869,870.14/54,015.80
  6. Step 6: Final answer
    x = 54,648.27

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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.