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Finding the Fourth Proportional to 69,787.75, 104,681.68 and 17,197.24

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Solution

The fourth proportional to 69,787.75, 104,681.68 and 17,197.24 is: 25,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,787.75 : 104,681.68 = 17,197.24 : x
  2. Step 2: Convert to fraction form
    69,787.75/104,681.68 = 17,197.24/x
  3. Step 3: Cross multiply
    69,787.75x = 104,681.68 × 17,197.24
  4. Step 4: Simplify right side
    69,787.75x = 1,800,235,365.17
  5. Step 5: Solve for x
    x = 1,800,235,365.17/69,787.75
  6. Step 6: Final answer
    x = 25,795.87

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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.