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Finding the Fourth Proportional to 57,675.58, 86,505.90 and 18,236.68

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Solution

The fourth proportional to 57,675.58, 86,505.90 and 18,236.68 is: 27,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,675.58 : 86,505.90 = 18,236.68 : x
  2. Step 2: Convert to fraction form
    57,675.58/86,505.90 = 18,236.68/x
  3. Step 3: Cross multiply
    57,675.58x = 86,505.90 × 18,236.68
  4. Step 4: Simplify right side
    57,675.58x = 1,577,580,416.41
  5. Step 5: Solve for x
    x = 1,577,580,416.41/57,675.58
  6. Step 6: Final answer
    x = 27,352.66

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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.