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Finding the Fourth Proportional to 57,465.60, 86,198.40 and 48,280.20

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Solution

The fourth proportional to 57,465.60, 86,198.40 and 48,280.20 is: 72,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,465.60 : 86,198.40 = 48,280.20 : x
  2. Step 2: Convert to fraction form
    57,465.60/86,198.40 = 48,280.20/x
  3. Step 3: Cross multiply
    57,465.60x = 86,198.40 × 48,280.20
  4. Step 4: Simplify right side
    57,465.60x = 4,161,675,991.68
  5. Step 5: Solve for x
    x = 4,161,675,991.68/57,465.60
  6. Step 6: Final answer
    x = 72,420.30

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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.