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Finding the Fourth Proportional to 69,610.88, 104,422.62 and 19,691.48

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Solution

The fourth proportional to 69,610.88, 104,422.62 and 19,691.48 is: 29,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,610.88 : 104,422.62 = 19,691.48 : x
  2. Step 2: Convert to fraction form
    69,610.88/104,422.62 = 19,691.48/x
  3. Step 3: Cross multiply
    69,610.88x = 104,422.62 × 19,691.48
  4. Step 4: Simplify right side
    69,610.88x = 2,056,235,933.28
  5. Step 5: Solve for x
    x = 2,056,235,933.28/69,610.88
  6. Step 6: Final answer
    x = 29,539.00

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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.