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Finding the Fourth Proportional to 34,891.91, 48,149.46 and 18,976.34

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Solution

The fourth proportional to 34,891.91, 48,149.46 and 18,976.34 is: 26,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,891.91 : 48,149.46 = 18,976.34 : x
  2. Step 2: Convert to fraction form
    34,891.91/48,149.46 = 18,976.34/x
  3. Step 3: Cross multiply
    34,891.91x = 48,149.46 × 18,976.34
  4. Step 4: Simplify right side
    34,891.91x = 913,700,523.78
  5. Step 5: Solve for x
    x = 913,700,523.78/34,891.91
  6. Step 6: Final answer
    x = 26,186.60

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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.