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Finding the Fourth Proportional to 57,226.40, 85,839.60 and 48,586.40

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Solution

The fourth proportional to 57,226.40, 85,839.60 and 48,586.40 is: 72,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,226.40 : 85,839.60 = 48,586.40 : x
  2. Step 2: Convert to fraction form
    57,226.40/85,839.60 = 48,586.40/x
  3. Step 3: Cross multiply
    57,226.40x = 85,839.60 × 48,586.40
  4. Step 4: Simplify right side
    57,226.40x = 4,170,637,141.44
  5. Step 5: Solve for x
    x = 4,170,637,141.44/57,226.40
  6. Step 6: Final answer
    x = 72,879.60

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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.