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Finding the Fourth Proportional to 57,867.88, 86,712.52 and 39,074.26

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Solution

The fourth proportional to 57,867.88, 86,712.52 and 39,074.26 is: 58,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.88 : 86,712.52 = 39,074.26 : x
  2. Step 2: Convert to fraction form
    57,867.88/86,712.52 = 39,074.26/x
  3. Step 3: Cross multiply
    57,867.88x = 86,712.52 × 39,074.26
  4. Step 4: Simplify right side
    57,867.88x = 3,388,227,551.74
  5. Step 5: Solve for x
    x = 3,388,227,551.74/57,867.88
  6. Step 6: Final answer
    x = 58,551.09

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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.