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Finding the Fourth Proportional to 57,729.60, 86,594.40 and 53,452.80

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Solution

The fourth proportional to 57,729.60, 86,594.40 and 53,452.80 is: 80,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.60 : 86,594.40 = 53,452.80 : x
  2. Step 2: Convert to fraction form
    57,729.60/86,594.40 = 53,452.80/x
  3. Step 3: Cross multiply
    57,729.60x = 86,594.40 × 53,452.80
  4. Step 4: Simplify right side
    57,729.60x = 4,628,713,144.32
  5. Step 5: Solve for x
    x = 4,628,713,144.32/57,729.60
  6. Step 6: Final answer
    x = 80,179.20

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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.