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Finding the Fourth Proportional to 69,383.91, 95,754.32 and 39,158.22

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Solution

The fourth proportional to 69,383.91, 95,754.32 and 39,158.22 is: 54,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,383.91 : 95,754.32 = 39,158.22 : x
  2. Step 2: Convert to fraction form
    69,383.91/95,754.32 = 39,158.22/x
  3. Step 3: Cross multiply
    69,383.91x = 95,754.32 × 39,158.22
  4. Step 4: Simplify right side
    69,383.91x = 3,749,568,728.51
  5. Step 5: Solve for x
    x = 3,749,568,728.51/69,383.91
  6. Step 6: Final answer
    x = 54,040.90

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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.