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Finding the Fourth Proportional to 34,906.32, 48,169.32 and 18,990.84

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Solution

The fourth proportional to 34,906.32, 48,169.32 and 18,990.84 is: 26,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,906.32 : 48,169.32 = 18,990.84 : x
  2. Step 2: Convert to fraction form
    34,906.32/48,169.32 = 18,990.84/x
  3. Step 3: Cross multiply
    34,906.32x = 48,169.32 × 18,990.84
  4. Step 4: Simplify right side
    34,906.32x = 914,775,560.71
  5. Step 5: Solve for x
    x = 914,775,560.71/34,906.32
  6. Step 6: Final answer
    x = 26,206.59

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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.