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Finding the Fourth Proportional to 57,512.28, 86,268.42 and 32,871

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Solution

The fourth proportional to 57,512.28, 86,268.42 and 32,871 is: 49,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512.28 : 86,268.42 = 32,871 : x
  2. Step 2: Convert to fraction form
    57,512.28/86,268.42 = 32,871/x
  3. Step 3: Cross multiply
    57,512.28x = 86,268.42 × 32,871
  4. Step 4: Simplify right side
    57,512.28x = 2,835,729,233.82
  5. Step 5: Solve for x
    x = 2,835,729,233.82/57,512.28
  6. Step 6: Final answer
    x = 49,306.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.