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Finding the Fourth Proportional to 35,394.91, 48,845.13 and 20,288.44

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Solution

The fourth proportional to 35,394.91, 48,845.13 and 20,288.44 is: 27,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,394.91 : 48,845.13 = 20,288.44 : x
  2. Step 2: Convert to fraction form
    35,394.91/48,845.13 = 20,288.44/x
  3. Step 3: Cross multiply
    35,394.91x = 48,845.13 × 20,288.44
  4. Step 4: Simplify right side
    35,394.91x = 990,991,474.27
  5. Step 5: Solve for x
    x = 990,991,474.27/35,394.91
  6. Step 6: Final answer
    x = 27,998.14

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1.5x scale

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.