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Finding the Fourth Proportional to 69,173.41, 103,763.87 and 21,792.24

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Solution

The fourth proportional to 69,173.41, 103,763.87 and 21,792.24 is: 32,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,173.41 : 103,763.87 = 21,792.24 : x
  2. Step 2: Convert to fraction form
    69,173.41/103,763.87 = 21,792.24/x
  3. Step 3: Cross multiply
    69,173.41x = 103,763.87 × 21,792.24
  4. Step 4: Simplify right side
    69,173.41x = 2,261,246,530.59
  5. Step 5: Solve for x
    x = 2,261,246,530.59/69,173.41
  6. Step 6: Final answer
    x = 32,689.53

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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.