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Finding the Fourth Proportional to 93,600, 140,400 and 27,936

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Solution

The fourth proportional to 93,600, 140,400 and 27,936 is: 41,904

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,600 : 140,400 = 27,936 : x
  2. Step 2: Convert to fraction form
    93,600/140,400 = 27,936/x
  3. Step 3: Cross multiply
    93,600x = 140,400 × 27,936
  4. Step 4: Simplify right side
    93,600x = 3,922,214,400
  5. Step 5: Solve for x
    x = 3,922,214,400/93,600
  6. Step 6: Final answer
    x = 41,904

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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.