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Finding the Fourth Proportional to 39,343.89, 59,021.97 and 15,971.97

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Solution

The fourth proportional to 39,343.89, 59,021.97 and 15,971.97 is: 23,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.89 : 59,021.97 = 15,971.97 : x
  2. Step 2: Convert to fraction form
    39,343.89/59,021.97 = 15,971.97/x
  3. Step 3: Cross multiply
    39,343.89x = 59,021.97 × 15,971.97
  4. Step 4: Simplify right side
    39,343.89x = 942,697,134.18
  5. Step 5: Solve for x
    x = 942,697,134.18/39,343.89
  6. Step 6: Final answer
    x = 23,960.45

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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.