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Finding the Fourth Proportional to 57,871.36, 79,876.80 and 32,735.68

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Solution

The fourth proportional to 57,871.36, 79,876.80 and 32,735.68 is: 45,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,871.36 : 79,876.80 = 32,735.68 : x
  2. Step 2: Convert to fraction form
    57,871.36/79,876.80 = 32,735.68/x
  3. Step 3: Cross multiply
    57,871.36x = 79,876.80 × 32,735.68
  4. Step 4: Simplify right side
    57,871.36x = 2,614,821,364.22
  5. Step 5: Solve for x
    x = 2,614,821,364.22/57,871.36
  6. Step 6: Final answer
    x = 45,183.34

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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.