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Finding the Fourth Proportional to 71,263.73, 106,899.03 and 18,673.26

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Solution

The fourth proportional to 71,263.73, 106,899.03 and 18,673.26 is: 28,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.73 : 106,899.03 = 18,673.26 : x
  2. Step 2: Convert to fraction form
    71,263.73/106,899.03 = 18,673.26/x
  3. Step 3: Cross multiply
    71,263.73x = 106,899.03 × 18,673.26
  4. Step 4: Simplify right side
    71,263.73x = 1,996,153,380.94
  5. Step 5: Solve for x
    x = 1,996,153,380.94/71,263.73
  6. Step 6: Final answer
    x = 28,010.79

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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.