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Finding the Fourth Proportional to 35,358.15, 48,790.15 and 20,249.91

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Solution

The fourth proportional to 35,358.15, 48,790.15 and 20,249.91 is: 27,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,358.15 : 48,790.15 = 20,249.91 : x
  2. Step 2: Convert to fraction form
    35,358.15/48,790.15 = 20,249.91/x
  3. Step 3: Cross multiply
    35,358.15x = 48,790.15 × 20,249.91
  4. Step 4: Simplify right side
    35,358.15x = 987,996,026.70
  5. Step 5: Solve for x
    x = 987,996,026.70/35,358.15
  6. Step 6: Final answer
    x = 27,942.53

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