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Finding the Fourth Proportional to 57,797.56, 86,699.34 and 18,357.76

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Solution

The fourth proportional to 57,797.56, 86,699.34 and 18,357.76 is: 27,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,797.56 : 86,699.34 = 18,357.76 : x
  2. Step 2: Convert to fraction form
    57,797.56/86,699.34 = 18,357.76/x
  3. Step 3: Cross multiply
    57,797.56x = 86,699.34 × 18,357.76
  4. Step 4: Simplify right side
    57,797.56x = 1,591,605,675.88
  5. Step 5: Solve for x
    x = 1,591,605,675.88/57,797.56
  6. Step 6: Final answer
    x = 27,537.59

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1.5x scale

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.