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Finding the Fourth Proportional to 35,393.62, 48,843.20 and 19,478.07

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Solution

The fourth proportional to 35,393.62, 48,843.20 and 19,478.07 is: 26,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,393.62 : 48,843.20 = 19,478.07 : x
  2. Step 2: Convert to fraction form
    35,393.62/48,843.20 = 19,478.07/x
  3. Step 3: Cross multiply
    35,393.62x = 48,843.20 × 19,478.07
  4. Step 4: Simplify right side
    35,393.62x = 951,371,268.62
  5. Step 5: Solve for x
    x = 951,371,268.62/35,393.62
  6. Step 6: Final answer
    x = 26,879.74

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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.