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Finding the Fourth Proportional to 56,690.76, 84,961.62 and 23,392.31

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Solution

The fourth proportional to 56,690.76, 84,961.62 and 23,392.31 is: 35,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.76 : 84,961.62 = 23,392.31 : x
  2. Step 2: Convert to fraction form
    56,690.76/84,961.62 = 23,392.31/x
  3. Step 3: Cross multiply
    56,690.76x = 84,961.62 × 23,392.31
  4. Step 4: Simplify right side
    56,690.76x = 1,987,448,128.33
  5. Step 5: Solve for x
    x = 1,987,448,128.33/56,690.76
  6. Step 6: Final answer
    x = 35,057.71

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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.