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Finding the Fourth Proportional to 49,620.70, 74,264.70 and 40,735.54

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Solution

The fourth proportional to 49,620.70, 74,264.70 and 40,735.54 is: 60,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,620.70 : 74,264.70 = 40,735.54 : x
  2. Step 2: Convert to fraction form
    49,620.70/74,264.70 = 40,735.54/x
  3. Step 3: Cross multiply
    49,620.70x = 74,264.70 × 40,735.54
  4. Step 4: Simplify right side
    49,620.70x = 3,025,212,657.44
  5. Step 5: Solve for x
    x = 3,025,212,657.44/49,620.70
  6. Step 6: Final answer
    x = 60,966.75

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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.