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Finding the Fourth Proportional to 12,700.80, 19,052.01 and 3,941.46

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Solution

The fourth proportional to 12,700.80, 19,052.01 and 3,941.46 is: 5,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.80 : 19,052.01 = 3,941.46 : x
  2. Step 2: Convert to fraction form
    12,700.80/19,052.01 = 3,941.46/x
  3. Step 3: Cross multiply
    12,700.80x = 19,052.01 × 3,941.46
  4. Step 4: Simplify right side
    12,700.80x = 75,092,735.33
  5. Step 5: Solve for x
    x = 75,092,735.33/12,700.80
  6. Step 6: Final answer
    x = 5,912.44

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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.