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Finding the Fourth Proportional to 58,504.74, 80,736.51 and 31,647.21

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Solution

The fourth proportional to 58,504.74, 80,736.51 and 31,647.21 is: 43,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,504.74 : 80,736.51 = 31,647.21 : x
  2. Step 2: Convert to fraction form
    58,504.74/80,736.51 = 31,647.21/x
  3. Step 3: Cross multiply
    58,504.74x = 80,736.51 × 31,647.21
  4. Step 4: Simplify right side
    58,504.74x = 2,555,085,286.64
  5. Step 5: Solve for x
    x = 2,555,085,286.64/58,504.74
  6. Step 6: Final answer
    x = 43,673.13

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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.