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Finding the Fourth Proportional to 62,740.80, 94,028.12 and 46,022.56

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Solution

The fourth proportional to 62,740.80, 94,028.12 and 46,022.56 is: 68,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,740.80 : 94,028.12 = 46,022.56 : x
  2. Step 2: Convert to fraction form
    62,740.80/94,028.12 = 46,022.56/x
  3. Step 3: Cross multiply
    62,740.80x = 94,028.12 × 46,022.56
  4. Step 4: Simplify right side
    62,740.80x = 4,327,414,794.39
  5. Step 5: Solve for x
    x = 4,327,414,794.39/62,740.80
  6. Step 6: Final answer
    x = 68,972.90

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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.