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Finding the Fourth Proportional to 34,874.73, 48,129.09 and 18,958.83

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Solution

The fourth proportional to 34,874.73, 48,129.09 and 18,958.83 is: 26,164.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,874.73 : 48,129.09 = 18,958.83 : x
  2. Step 2: Convert to fraction form
    34,874.73/48,129.09 = 18,958.83/x
  3. Step 3: Cross multiply
    34,874.73x = 48,129.09 × 18,958.83
  4. Step 4: Simplify right side
    34,874.73x = 912,471,235.36
  5. Step 5: Solve for x
    x = 912,471,235.36/34,874.73
  6. Step 6: Final answer
    x = 26,164.25

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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.