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Finding the Fourth Proportional to 44,980.62, 67,479.12 and 18,687.39

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Solution

The fourth proportional to 44,980.62, 67,479.12 and 18,687.39 is: 28,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,980.62 : 67,479.12 = 18,687.39 : x
  2. Step 2: Convert to fraction form
    44,980.62/67,479.12 = 18,687.39/x
  3. Step 3: Cross multiply
    44,980.62x = 67,479.12 × 18,687.39
  4. Step 4: Simplify right side
    44,980.62x = 1,261,008,632.30
  5. Step 5: Solve for x
    x = 1,261,008,632.30/44,980.62
  6. Step 6: Final answer
    x = 28,034.49

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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.