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Finding the Fourth Proportional to 26,693.84, 40,027.14 and 8,918.09

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Solution

The fourth proportional to 26,693.84, 40,027.14 and 8,918.09 is: 13,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,693.84 : 40,027.14 = 8,918.09 : x
  2. Step 2: Convert to fraction form
    26,693.84/40,027.14 = 8,918.09/x
  3. Step 3: Cross multiply
    26,693.84x = 40,027.14 × 8,918.09
  4. Step 4: Simplify right side
    26,693.84x = 356,965,636.96
  5. Step 5: Solve for x
    x = 356,965,636.96/26,693.84
  6. Step 6: Final answer
    x = 13,372.58

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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.