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Finding the Fourth Proportional to 69,787.01, 104,640.86 and 47,627.24

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Solution

The fourth proportional to 69,787.01, 104,640.86 and 47,627.24 is: 71,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,787.01 : 104,640.86 = 47,627.24 : x
  2. Step 2: Convert to fraction form
    69,787.01/104,640.86 = 47,627.24/x
  3. Step 3: Cross multiply
    69,787.01x = 104,640.86 × 47,627.24
  4. Step 4: Simplify right side
    69,787.01x = 4,983,754,948.89
  5. Step 5: Solve for x
    x = 4,983,754,948.89/69,787.01
  6. Step 6: Final answer
    x = 71,413.79

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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.