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Finding the Fourth Proportional to 69,274.87, 103,912.34 and 16,684.34

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Solution

The fourth proportional to 69,274.87, 103,912.34 and 16,684.34 is: 25,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,274.87 : 103,912.34 = 16,684.34 : x
  2. Step 2: Convert to fraction form
    69,274.87/103,912.34 = 16,684.34/x
  3. Step 3: Cross multiply
    69,274.87x = 103,912.34 × 16,684.34
  4. Step 4: Simplify right side
    69,274.87x = 1,733,708,207.77
  5. Step 5: Solve for x
    x = 1,733,708,207.77/69,274.87
  6. Step 6: Final answer
    x = 25,026.51

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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.