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Finding the Fourth Proportional to 31,993.39, 47,990.09 and 16,401.07

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Solution

The fourth proportional to 31,993.39, 47,990.09 and 16,401.07 is: 24,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993.39 : 47,990.09 = 16,401.07 : x
  2. Step 2: Convert to fraction form
    31,993.39/47,990.09 = 16,401.07/x
  3. Step 3: Cross multiply
    31,993.39x = 47,990.09 × 16,401.07
  4. Step 4: Simplify right side
    31,993.39x = 787,088,825.40
  5. Step 5: Solve for x
    x = 787,088,825.40/31,993.39
  6. Step 6: Final answer
    x = 24,601.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.