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Finding the Fourth Proportional to 35,353.92, 48,789.78 and 19,439.88

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Solution

The fourth proportional to 35,353.92, 48,789.78 and 19,439.88 is: 26,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,353.92 : 48,789.78 = 19,439.88 : x
  2. Step 2: Convert to fraction form
    35,353.92/48,789.78 = 19,439.88/x
  3. Step 3: Cross multiply
    35,353.92x = 48,789.78 × 19,439.88
  4. Step 4: Simplify right side
    35,353.92x = 948,467,468.43
  5. Step 5: Solve for x
    x = 948,467,468.43/35,353.92
  6. Step 6: Final answer
    x = 26,827.79

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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.