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Finding the Fourth Proportional to 69,659.43, 104,489.13 and 17,068.46

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Solution

The fourth proportional to 69,659.43, 104,489.13 and 17,068.46 is: 25,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,659.43 : 104,489.13 = 17,068.46 : x
  2. Step 2: Convert to fraction form
    69,659.43/104,489.13 = 17,068.46/x
  3. Step 3: Cross multiply
    69,659.43x = 104,489.13 × 17,068.46
  4. Step 4: Simplify right side
    69,659.43x = 1,783,468,013.39
  5. Step 5: Solve for x
    x = 1,783,468,013.39/69,659.43
  6. Step 6: Final answer
    x = 25,602.68

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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.