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Finding the Fourth Proportional to 35,353.92, 48,789.44 and 20,248

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Solution

The fourth proportional to 35,353.92, 48,789.44 and 20,248 is: 27,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,353.92 : 48,789.44 = 20,248 : x
  2. Step 2: Convert to fraction form
    35,353.92/48,789.44 = 20,248/x
  3. Step 3: Cross multiply
    35,353.92x = 48,789.44 × 20,248
  4. Step 4: Simplify right side
    35,353.92x = 987,888,581.12
  5. Step 5: Solve for x
    x = 987,888,581.12/35,353.92
  6. Step 6: Final answer
    x = 27,942.83

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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.