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Finding the Fourth Proportional to 34,906.90, 48,170.99 and 18,990.98

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Solution

The fourth proportional to 34,906.90, 48,170.99 and 18,990.98 is: 26,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,906.90 : 48,170.99 = 18,990.98 : x
  2. Step 2: Convert to fraction form
    34,906.90/48,170.99 = 18,990.98/x
  3. Step 3: Cross multiply
    34,906.90x = 48,170.99 × 18,990.98
  4. Step 4: Simplify right side
    34,906.90x = 914,814,212.72
  5. Step 5: Solve for x
    x = 914,814,212.72/34,906.90
  6. Step 6: Final answer
    x = 26,207.26

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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.