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Finding the Fourth Proportional to 69,891.72, 96,447.68 and 38,060.52

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Solution

The fourth proportional to 69,891.72, 96,447.68 and 38,060.52 is: 52,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,891.72 : 96,447.68 = 38,060.52 : x
  2. Step 2: Convert to fraction form
    69,891.72/96,447.68 = 38,060.52/x
  3. Step 3: Cross multiply
    69,891.72x = 96,447.68 × 38,060.52
  4. Step 4: Simplify right side
    69,891.72x = 3,670,848,853.59
  5. Step 5: Solve for x
    x = 3,670,848,853.59/69,891.72
  6. Step 6: Final answer
    x = 52,521.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.