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Finding the Fourth Proportional to 66,936.93, 100,403.74 and 16,336.32

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Solution

The fourth proportional to 66,936.93, 100,403.74 and 16,336.32 is: 24,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936.93 : 100,403.74 = 16,336.32 : x
  2. Step 2: Convert to fraction form
    66,936.93/100,403.74 = 16,336.32/x
  3. Step 3: Cross multiply
    66,936.93x = 100,403.74 × 16,336.32
  4. Step 4: Simplify right side
    66,936.93x = 1,640,227,269.74
  5. Step 5: Solve for x
    x = 1,640,227,269.74/66,936.93
  6. Step 6: Final answer
    x = 24,504.07

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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.