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Finding the Fourth Proportional to 49,675.67, 74,513.67 and 12,236.60

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Solution

The fourth proportional to 49,675.67, 74,513.67 and 12,236.60 is: 18,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,675.67 : 74,513.67 = 12,236.60 : x
  2. Step 2: Convert to fraction form
    49,675.67/74,513.67 = 12,236.60/x
  3. Step 3: Cross multiply
    49,675.67x = 74,513.67 × 12,236.60
  4. Step 4: Simplify right side
    49,675.67x = 911,793,974.32
  5. Step 5: Solve for x
    x = 911,793,974.32/49,675.67
  6. Step 6: Final answer
    x = 18,354.94

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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.