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Finding the Fourth Proportional to 57,119.92, 85,679.88 and 15,573.04

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Solution

The fourth proportional to 57,119.92, 85,679.88 and 15,573.04 is: 23,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.92 : 85,679.88 = 15,573.04 : x
  2. Step 2: Convert to fraction form
    57,119.92/85,679.88 = 15,573.04/x
  3. Step 3: Cross multiply
    57,119.92x = 85,679.88 × 15,573.04
  4. Step 4: Simplify right side
    57,119.92x = 1,334,296,198.44
  5. Step 5: Solve for x
    x = 1,334,296,198.44/57,119.92
  6. Step 6: Final answer
    x = 23,359.56

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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.