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Finding the Fourth Proportional to 67,918.44, 101,866.50 and 18,001.62

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Solution

The fourth proportional to 67,918.44, 101,866.50 and 18,001.62 is: 26,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,918.44 : 101,866.50 = 18,001.62 : x
  2. Step 2: Convert to fraction form
    67,918.44/101,866.50 = 18,001.62/x
  3. Step 3: Cross multiply
    67,918.44x = 101,866.50 × 18,001.62
  4. Step 4: Simplify right side
    67,918.44x = 1,833,762,023.73
  5. Step 5: Solve for x
    x = 1,833,762,023.73/67,918.44
  6. Step 6: Final answer
    x = 26,999.47

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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.