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Finding the Fourth Proportional to 26,368.50, 39,553.17 and 7,900.50

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Solution

The fourth proportional to 26,368.50, 39,553.17 and 7,900.50 is: 11,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,368.50 : 39,553.17 = 7,900.50 : x
  2. Step 2: Convert to fraction form
    26,368.50/39,553.17 = 7,900.50/x
  3. Step 3: Cross multiply
    26,368.50x = 39,553.17 × 7,900.50
  4. Step 4: Simplify right side
    26,368.50x = 312,489,819.59
  5. Step 5: Solve for x
    x = 312,489,819.59/26,368.50
  6. Step 6: Final answer
    x = 11,850.88

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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.