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Finding the Fourth Proportional to 57,723.60, 86,585.40 and 53,446.80

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Solution

The fourth proportional to 57,723.60, 86,585.40 and 53,446.80 is: 80,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.60 : 86,585.40 = 53,446.80 : x
  2. Step 2: Convert to fraction form
    57,723.60/86,585.40 = 53,446.80/x
  3. Step 3: Cross multiply
    57,723.60x = 86,585.40 × 53,446.80
  4. Step 4: Simplify right side
    57,723.60x = 4,627,712,556.72
  5. Step 5: Solve for x
    x = 4,627,712,556.72/57,723.60
  6. Step 6: Final answer
    x = 80,170.20

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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.