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Finding the Fourth Proportional to 57,871.54, 79,864.41 and 32,720.50

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Solution

The fourth proportional to 57,871.54, 79,864.41 and 32,720.50 is: 45,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,871.54 : 79,864.41 = 32,720.50 : x
  2. Step 2: Convert to fraction form
    57,871.54/79,864.41 = 32,720.50/x
  3. Step 3: Cross multiply
    57,871.54x = 79,864.41 × 32,720.50
  4. Step 4: Simplify right side
    57,871.54x = 2,613,203,427.41
  5. Step 5: Solve for x
    x = 2,613,203,427.41/57,871.54
  6. Step 6: Final answer
    x = 45,155.24

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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.