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Finding the Fourth Proportional to 36,810, 50,797.80 and 20,043

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Solution

The fourth proportional to 36,810, 50,797.80 and 20,043 is: 27,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,810 : 50,797.80 = 20,043 : x
  2. Step 2: Convert to fraction form
    36,810/50,797.80 = 20,043/x
  3. Step 3: Cross multiply
    36,810x = 50,797.80 × 20,043
  4. Step 4: Simplify right side
    36,810x = 1,018,140,305.40
  5. Step 5: Solve for x
    x = 1,018,140,305.40/36,810
  6. Step 6: Final answer
    x = 27,659.34

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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.