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Finding the Fourth Proportional to 49,930.66, 74,905.80 and 16,650.28

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Solution

The fourth proportional to 49,930.66, 74,905.80 and 16,650.28 is: 24,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,930.66 : 74,905.80 = 16,650.28 : x
  2. Step 2: Convert to fraction form
    49,930.66/74,905.80 = 16,650.28/x
  3. Step 3: Cross multiply
    49,930.66x = 74,905.80 × 16,650.28
  4. Step 4: Simplify right side
    49,930.66x = 1,247,202,543.62
  5. Step 5: Solve for x
    x = 1,247,202,543.62/49,930.66
  6. Step 6: Final answer
    x = 24,978.69

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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.