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Finding the Fourth Proportional to 57,818.41, 86,741.34 and 18,375.55

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Solution

The fourth proportional to 57,818.41, 86,741.34 and 18,375.55 is: 27,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.41 : 86,741.34 = 18,375.55 : x
  2. Step 2: Convert to fraction form
    57,818.41/86,741.34 = 18,375.55/x
  3. Step 3: Cross multiply
    57,818.41x = 86,741.34 × 18,375.55
  4. Step 4: Simplify right side
    57,818.41x = 1,593,919,830.24
  5. Step 5: Solve for x
    x = 1,593,919,830.24/57,818.41
  6. Step 6: Final answer
    x = 27,567.69

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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.