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Finding the Fourth Proportional to 57,659.08, 79,569.38 and 31,163.08

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Solution

The fourth proportional to 57,659.08, 79,569.38 and 31,163.08 is: 43,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,659.08 : 79,569.38 = 31,163.08 : x
  2. Step 2: Convert to fraction form
    57,659.08/79,569.38 = 31,163.08/x
  3. Step 3: Cross multiply
    57,659.08x = 79,569.38 × 31,163.08
  4. Step 4: Simplify right side
    57,659.08x = 2,479,626,954.49
  5. Step 5: Solve for x
    x = 2,479,626,954.49/57,659.08
  6. Step 6: Final answer
    x = 43,004.97

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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.