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Finding the Fourth Proportional to 36,876.63, 55,216.53 and 19,309.53

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Solution

The fourth proportional to 36,876.63, 55,216.53 and 19,309.53 is: 28,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,876.63 : 55,216.53 = 19,309.53 : x
  2. Step 2: Convert to fraction form
    36,876.63/55,216.53 = 19,309.53/x
  3. Step 3: Cross multiply
    36,876.63x = 55,216.53 × 19,309.53
  4. Step 4: Simplify right side
    36,876.63x = 1,066,205,242.53
  5. Step 5: Solve for x
    x = 1,066,205,242.53/36,876.63
  6. Step 6: Final answer
    x = 28,912.76

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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.