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Finding the Fourth Proportional to 62,874.51, 94,323.42 and 20,757.51

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Solution

The fourth proportional to 62,874.51, 94,323.42 and 20,757.51 is: 31,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,874.51 : 94,323.42 = 20,757.51 : x
  2. Step 2: Convert to fraction form
    62,874.51/94,323.42 = 20,757.51/x
  3. Step 3: Cross multiply
    62,874.51x = 94,323.42 × 20,757.51
  4. Step 4: Simplify right side
    62,874.51x = 1,957,919,333.88
  5. Step 5: Solve for x
    x = 1,957,919,333.88/62,874.51
  6. Step 6: Final answer
    x = 31,140.11

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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.