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Finding the Fourth Proportional to 36,760.21, 55,051.49 and 20,917.24

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Solution

The fourth proportional to 36,760.21, 55,051.49 and 20,917.24 is: 31,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,760.21 : 55,051.49 = 20,917.24 : x
  2. Step 2: Convert to fraction form
    36,760.21/55,051.49 = 20,917.24/x
  3. Step 3: Cross multiply
    36,760.21x = 55,051.49 × 20,917.24
  4. Step 4: Simplify right side
    36,760.21x = 1,151,525,228.69
  5. Step 5: Solve for x
    x = 1,151,525,228.69/36,760.21
  6. Step 6: Final answer
    x = 31,325.32

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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.