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Finding the Fourth Proportional to 57,958.92, 79,971 and 34,076.88

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Solution

The fourth proportional to 57,958.92, 79,971 and 34,076.88 is: 47,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,958.92 : 79,971 = 34,076.88 : x
  2. Step 2: Convert to fraction form
    57,958.92/79,971 = 34,076.88/x
  3. Step 3: Cross multiply
    57,958.92x = 79,971 × 34,076.88
  4. Step 4: Simplify right side
    57,958.92x = 2,725,162,170.48
  5. Step 5: Solve for x
    x = 2,725,162,170.48/57,958.92
  6. Step 6: Final answer
    x = 47,018.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.