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Finding the Fourth Proportional to 57,710.88, 86,556.60 and 22,660.56

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Solution

The fourth proportional to 57,710.88, 86,556.60 and 22,660.56 is: 33,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.88 : 86,556.60 = 22,660.56 : x
  2. Step 2: Convert to fraction form
    57,710.88/86,556.60 = 22,660.56/x
  3. Step 3: Cross multiply
    57,710.88x = 86,556.60 × 22,660.56
  4. Step 4: Simplify right side
    57,710.88x = 1,961,421,027.70
  5. Step 5: Solve for x
    x = 1,961,421,027.70/57,710.88
  6. Step 6: Final answer
    x = 33,987.02

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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.