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Finding the Fourth Proportional to 69,763.80, 104,644.76 and 17,173.72

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Solution

The fourth proportional to 69,763.80, 104,644.76 and 17,173.72 is: 25,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,763.80 : 104,644.76 = 17,173.72 : x
  2. Step 2: Convert to fraction form
    69,763.80/104,644.76 = 17,173.72/x
  3. Step 3: Cross multiply
    69,763.80x = 104,644.76 × 17,173.72
  4. Step 4: Simplify right side
    69,763.80x = 1,797,139,807.71
  5. Step 5: Solve for x
    x = 1,797,139,807.71/69,763.80
  6. Step 6: Final answer
    x = 25,760.35

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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.