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Finding the Fourth Proportional to 69,371.55, 104,051.97 and 19,449

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Solution

The fourth proportional to 69,371.55, 104,051.97 and 19,449 is: 29,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,371.55 : 104,051.97 = 19,449 : x
  2. Step 2: Convert to fraction form
    69,371.55/104,051.97 = 19,449/x
  3. Step 3: Cross multiply
    69,371.55x = 104,051.97 × 19,449
  4. Step 4: Simplify right side
    69,371.55x = 2,023,706,764.53
  5. Step 5: Solve for x
    x = 2,023,706,764.53/69,371.55
  6. Step 6: Final answer
    x = 29,172.00

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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.