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Finding the Fourth Proportional to 69,589.52, 104,389.90 and 19,670.03

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Solution

The fourth proportional to 69,589.52, 104,389.90 and 19,670.03 is: 29,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,589.52 : 104,389.90 = 19,670.03 : x
  2. Step 2: Convert to fraction form
    69,589.52/104,389.90 = 19,670.03/x
  3. Step 3: Cross multiply
    69,589.52x = 104,389.90 × 19,670.03
  4. Step 4: Simplify right side
    69,589.52x = 2,053,352,464.70
  5. Step 5: Solve for x
    x = 2,053,352,464.70/69,589.52
  6. Step 6: Final answer
    x = 29,506.63

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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.