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Finding the Fourth Proportional to 69,989.94, 104,984.00 and 17,399.88

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Solution

The fourth proportional to 69,989.94, 104,984.00 and 17,399.88 is: 26,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,989.94 : 104,984.00 = 17,399.88 : x
  2. Step 2: Convert to fraction form
    69,989.94/104,984.00 = 17,399.88/x
  3. Step 3: Cross multiply
    69,989.94x = 104,984.00 × 17,399.88
  4. Step 4: Simplify right side
    69,989.94x = 1,826,708,980.17
  5. Step 5: Solve for x
    x = 1,826,708,980.17/69,989.94
  6. Step 6: Final answer
    x = 26,099.59

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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.