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Finding the Fourth Proportional to 57,391.40, 79,177.46 and 33,187.92

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Solution

The fourth proportional to 57,391.40, 79,177.46 and 33,187.92 is: 45,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,391.40 : 79,177.46 = 33,187.92 : x
  2. Step 2: Convert to fraction form
    57,391.40/79,177.46 = 33,187.92/x
  3. Step 3: Cross multiply
    57,391.40x = 79,177.46 × 33,187.92
  4. Step 4: Simplify right side
    57,391.40x = 2,627,735,208.28
  5. Step 5: Solve for x
    x = 2,627,735,208.28/57,391.40
  6. Step 6: Final answer
    x = 45,786.22

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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.