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Finding the Fourth Proportional to 39,808.80, 59,713.20 and 27,367.20

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Solution

The fourth proportional to 39,808.80, 59,713.20 and 27,367.20 is: 41,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.80 : 59,713.20 = 27,367.20 : x
  2. Step 2: Convert to fraction form
    39,808.80/59,713.20 = 27,367.20/x
  3. Step 3: Cross multiply
    39,808.80x = 59,713.20 × 27,367.20
  4. Step 4: Simplify right side
    39,808.80x = 1,634,183,087.04
  5. Step 5: Solve for x
    x = 1,634,183,087.04/39,808.80
  6. Step 6: Final answer
    x = 41,050.80

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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.