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Finding the Fourth Proportional to 57,712.40, 86,568.60 and 26,608.40

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Solution

The fourth proportional to 57,712.40, 86,568.60 and 26,608.40 is: 39,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.40 : 86,568.60 = 26,608.40 : x
  2. Step 2: Convert to fraction form
    57,712.40/86,568.60 = 26,608.40/x
  3. Step 3: Cross multiply
    57,712.40x = 86,568.60 × 26,608.40
  4. Step 4: Simplify right side
    57,712.40x = 2,303,451,936.24
  5. Step 5: Solve for x
    x = 2,303,451,936.24/57,712.40
  6. Step 6: Final answer
    x = 39,912.60

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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.