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Finding the Fourth Proportional to 57,212.62, 85,818.94 and 15,659.62

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Solution

The fourth proportional to 57,212.62, 85,818.94 and 15,659.62 is: 23,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212.62 : 85,818.94 = 15,659.62 : x
  2. Step 2: Convert to fraction form
    57,212.62/85,818.94 = 15,659.62/x
  3. Step 3: Cross multiply
    57,212.62x = 85,818.94 × 15,659.62
  4. Step 4: Simplify right side
    57,212.62x = 1,343,891,989.20
  5. Step 5: Solve for x
    x = 1,343,891,989.20/57,212.62
  6. Step 6: Final answer
    x = 23,489.43

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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.