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Finding the Fourth Proportional to 35,394.80, 48,843.05 and 19,478.84

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Solution

The fourth proportional to 35,394.80, 48,843.05 and 19,478.84 is: 26,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,394.80 : 48,843.05 = 19,478.84 : x
  2. Step 2: Convert to fraction form
    35,394.80/48,843.05 = 19,478.84/x
  3. Step 3: Cross multiply
    35,394.80x = 48,843.05 × 19,478.84
  4. Step 4: Simplify right side
    35,394.80x = 951,405,956.06
  5. Step 5: Solve for x
    x = 951,405,956.06/35,394.80
  6. Step 6: Final answer
    x = 26,879.82

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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.