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Finding the Fourth Proportional to 57,775.20, 86,662.80 and 16,216.80

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Solution

The fourth proportional to 57,775.20, 86,662.80 and 16,216.80 is: 24,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,775.20 : 86,662.80 = 16,216.80 : x
  2. Step 2: Convert to fraction form
    57,775.20/86,662.80 = 16,216.80/x
  3. Step 3: Cross multiply
    57,775.20x = 86,662.80 × 16,216.80
  4. Step 4: Simplify right side
    57,775.20x = 1,405,393,295.04
  5. Step 5: Solve for x
    x = 1,405,393,295.04/57,775.20
  6. Step 6: Final answer
    x = 24,325.20

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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.