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Finding the Fourth Proportional to 45,917.80, 68,876.70 and 16,336.60

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Solution

The fourth proportional to 45,917.80, 68,876.70 and 16,336.60 is: 24,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,917.80 : 68,876.70 = 16,336.60 : x
  2. Step 2: Convert to fraction form
    45,917.80/68,876.70 = 16,336.60/x
  3. Step 3: Cross multiply
    45,917.80x = 68,876.70 × 16,336.60
  4. Step 4: Simplify right side
    45,917.80x = 1,125,211,097.22
  5. Step 5: Solve for x
    x = 1,125,211,097.22/45,917.80
  6. Step 6: Final answer
    x = 24,504.90

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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.