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Finding the Fourth Proportional to 69,792.37, 104,648.77 and 47,632.57

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Solution

The fourth proportional to 69,792.37, 104,648.77 and 47,632.57 is: 71,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,792.37 : 104,648.77 = 47,632.57 : x
  2. Step 2: Convert to fraction form
    69,792.37/104,648.77 = 47,632.57/x
  3. Step 3: Cross multiply
    69,792.37x = 104,648.77 × 47,632.57
  4. Step 4: Simplify right side
    69,792.37x = 4,984,689,862.44
  5. Step 5: Solve for x
    x = 4,984,689,862.44/69,792.37
  6. Step 6: Final answer
    x = 71,421.70

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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.