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Finding the Fourth Proportional to 39,995.96, 59,990.43 and 36,863.96

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Solution

The fourth proportional to 39,995.96, 59,990.43 and 36,863.96 is: 55,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,995.96 : 59,990.43 = 36,863.96 : x
  2. Step 2: Convert to fraction form
    39,995.96/59,990.43 = 36,863.96/x
  3. Step 3: Cross multiply
    39,995.96x = 59,990.43 × 36,863.96
  4. Step 4: Simplify right side
    39,995.96x = 2,211,484,811.90
  5. Step 5: Solve for x
    x = 2,211,484,811.90/39,995.96
  6. Step 6: Final answer
    x = 55,292.70

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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.