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Finding the Fourth Proportional to 57,373.01, 79,174.57 and 31,879.28

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Solution

The fourth proportional to 57,373.01, 79,174.57 and 31,879.28 is: 43,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,373.01 : 79,174.57 = 31,879.28 : x
  2. Step 2: Convert to fraction form
    57,373.01/79,174.57 = 31,879.28/x
  3. Step 3: Cross multiply
    57,373.01x = 79,174.57 × 31,879.28
  4. Step 4: Simplify right side
    57,373.01x = 2,524,027,730.64
  5. Step 5: Solve for x
    x = 2,524,027,730.64/57,373.01
  6. Step 6: Final answer
    x = 43,993.29

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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.