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Finding the Fourth Proportional to 58,986, 81,400.68 and 33,843.60

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Solution

The fourth proportional to 58,986, 81,400.68 and 33,843.60 is: 46,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,986 : 81,400.68 = 33,843.60 : x
  2. Step 2: Convert to fraction form
    58,986/81,400.68 = 33,843.60/x
  3. Step 3: Cross multiply
    58,986x = 81,400.68 × 33,843.60
  4. Step 4: Simplify right side
    58,986x = 2,754,892,053.65
  5. Step 5: Solve for x
    x = 2,754,892,053.65/58,986
  6. Step 6: Final answer
    x = 46,704.17

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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.