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Finding the Fourth Proportional to 45,891.20, 68,836.80 and 35,523.20

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Solution

The fourth proportional to 45,891.20, 68,836.80 and 35,523.20 is: 53,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.20 : 68,836.80 = 35,523.20 : x
  2. Step 2: Convert to fraction form
    45,891.20/68,836.80 = 35,523.20/x
  3. Step 3: Cross multiply
    45,891.20x = 68,836.80 × 35,523.20
  4. Step 4: Simplify right side
    45,891.20x = 2,445,303,413.76
  5. Step 5: Solve for x
    x = 2,445,303,413.76/45,891.20
  6. Step 6: Final answer
    x = 53,284.80

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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.