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Finding the Fourth Proportional to 35,919.92, 49,486.88 and 28,363.48

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Solution

The fourth proportional to 35,919.92, 49,486.88 and 28,363.48 is: 39,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,919.92 : 49,486.88 = 28,363.48 : x
  2. Step 2: Convert to fraction form
    35,919.92/49,486.88 = 28,363.48/x
  3. Step 3: Cross multiply
    35,919.92x = 49,486.88 × 28,363.48
  4. Step 4: Simplify right side
    35,919.92x = 1,403,620,078.33
  5. Step 5: Solve for x
    x = 1,403,620,078.33/35,919.92
  6. Step 6: Final answer
    x = 39,076.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.