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Finding the Fourth Proportional to 69,429.74, 104,074.48 and 27,339.36

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Solution

The fourth proportional to 69,429.74, 104,074.48 and 27,339.36 is: 40,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.74 : 104,074.48 = 27,339.36 : x
  2. Step 2: Convert to fraction form
    69,429.74/104,074.48 = 27,339.36/x
  3. Step 3: Cross multiply
    69,429.74x = 104,074.48 × 27,339.36
  4. Step 4: Simplify right side
    69,429.74x = 2,845,329,675.53
  5. Step 5: Solve for x
    x = 2,845,329,675.53/69,429.74
  6. Step 6: Final answer
    x = 40,981.42

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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.