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Finding the Fourth Proportional to 62,860.50, 86,747.76 and 34,568.28

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Solution

The fourth proportional to 62,860.50, 86,747.76 and 34,568.28 is: 47,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,860.50 : 86,747.76 = 34,568.28 : x
  2. Step 2: Convert to fraction form
    62,860.50/86,747.76 = 34,568.28/x
  3. Step 3: Cross multiply
    62,860.50x = 86,747.76 × 34,568.28
  4. Step 4: Simplify right side
    62,860.50x = 2,998,720,857.05
  5. Step 5: Solve for x
    x = 2,998,720,857.05/62,860.50
  6. Step 6: Final answer
    x = 47,704.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.