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Finding the Fourth Proportional to 26,047.89, 39,078.36 and 7,579.89

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Solution

The fourth proportional to 26,047.89, 39,078.36 and 7,579.89 is: 11,371.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,047.89 : 39,078.36 = 7,579.89 : x
  2. Step 2: Convert to fraction form
    26,047.89/39,078.36 = 7,579.89/x
  3. Step 3: Cross multiply
    26,047.89x = 39,078.36 × 7,579.89
  4. Step 4: Simplify right side
    26,047.89x = 296,209,670.18
  5. Step 5: Solve for x
    x = 296,209,670.18/26,047.89
  6. Step 6: Final answer
    x = 11,371.73

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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.