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Finding the Fourth Proportional to 69,575.30, 104,367.29 and 19,659.23

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Solution

The fourth proportional to 69,575.30, 104,367.29 and 19,659.23 is: 29,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,575.30 : 104,367.29 = 19,659.23 : x
  2. Step 2: Convert to fraction form
    69,575.30/104,367.29 = 19,659.23/x
  3. Step 3: Cross multiply
    69,575.30x = 104,367.29 × 19,659.23
  4. Step 4: Simplify right side
    69,575.30x = 2,051,780,623.36
  5. Step 5: Solve for x
    x = 2,051,780,623.36/69,575.30
  6. Step 6: Final answer
    x = 29,490.07

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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.