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Finding the Fourth Proportional to 57,797.60, 86,725.20 and 32,856.80

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Solution

The fourth proportional to 57,797.60, 86,725.20 and 32,856.80 is: 49,301.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,797.60 : 86,725.20 = 32,856.80 : x
  2. Step 2: Convert to fraction form
    57,797.60/86,725.20 = 32,856.80/x
  3. Step 3: Cross multiply
    57,797.60x = 86,725.20 × 32,856.80
  4. Step 4: Simplify right side
    57,797.60x = 2,849,512,551.36
  5. Step 5: Solve for x
    x = 2,849,512,551.36/57,797.60
  6. Step 6: Final answer
    x = 49,301.57

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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.