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Finding the Fourth Proportional to 69,391.43, 104,086.80 and 16,800.92

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Solution

The fourth proportional to 69,391.43, 104,086.80 and 16,800.92 is: 25,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,391.43 : 104,086.80 = 16,800.92 : x
  2. Step 2: Convert to fraction form
    69,391.43/104,086.80 = 16,800.92/x
  3. Step 3: Cross multiply
    69,391.43x = 104,086.80 × 16,800.92
  4. Step 4: Simplify right side
    69,391.43x = 1,748,753,479.42
  5. Step 5: Solve for x
    x = 1,748,753,479.42/69,391.43
  6. Step 6: Final answer
    x = 25,201.29

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1.5x scale

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.