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Finding the Fourth Proportional to 36,811.40, 55,200.90 and 14,617.40

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Solution

The fourth proportional to 36,811.40, 55,200.90 and 14,617.40 is: 21,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,811.40 : 55,200.90 = 14,617.40 : x
  2. Step 2: Convert to fraction form
    36,811.40/55,200.90 = 14,617.40/x
  3. Step 3: Cross multiply
    36,811.40x = 55,200.90 × 14,617.40
  4. Step 4: Simplify right side
    36,811.40x = 806,893,635.66
  5. Step 5: Solve for x
    x = 806,893,635.66/36,811.40
  6. Step 6: Final answer
    x = 21,919.67

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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.