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Finding the Fourth Proportional to 57,952.80, 86,880.60 and 30,250.80

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Solution

The fourth proportional to 57,952.80, 86,880.60 and 30,250.80 is: 45,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,952.80 : 86,880.60 = 30,250.80 : x
  2. Step 2: Convert to fraction form
    57,952.80/86,880.60 = 30,250.80/x
  3. Step 3: Cross multiply
    57,952.80x = 86,880.60 × 30,250.80
  4. Step 4: Simplify right side
    57,952.80x = 2,628,207,654.48
  5. Step 5: Solve for x
    x = 2,628,207,654.48/57,952.80
  6. Step 6: Final answer
    x = 45,350.83

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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.