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Finding the Fourth Proportional to 53,578.61, 73,934.60 and 29,375.69

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Solution

The fourth proportional to 53,578.61, 73,934.60 and 29,375.69 is: 40,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,578.61 : 73,934.60 = 29,375.69 : x
  2. Step 2: Convert to fraction form
    53,578.61/73,934.60 = 29,375.69/x
  3. Step 3: Cross multiply
    53,578.61x = 73,934.60 × 29,375.69
  4. Step 4: Simplify right side
    53,578.61x = 2,171,879,927.83
  5. Step 5: Solve for x
    x = 2,171,879,927.83/53,578.61
  6. Step 6: Final answer
    x = 40,536.33

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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.