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Finding the Fourth Proportional to 57,173.56, 85,838.90 and 29,112.47

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Solution

The fourth proportional to 57,173.56, 85,838.90 and 29,112.47 is: 43,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,173.56 : 85,838.90 = 29,112.47 : x
  2. Step 2: Convert to fraction form
    57,173.56/85,838.90 = 29,112.47/x
  3. Step 3: Cross multiply
    57,173.56x = 85,838.90 × 29,112.47
  4. Step 4: Simplify right side
    57,173.56x = 2,498,982,401.08
  5. Step 5: Solve for x
    x = 2,498,982,401.08/57,173.56
  6. Step 6: Final answer
    x = 43,708.71

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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.