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Finding the Fourth Proportional to 40,840.20, 57,234.60 and 40,840.20

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Solution

The fourth proportional to 40,840.20, 57,234.60 and 40,840.20 is: 57,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,840.20 : 57,234.60 = 40,840.20 : x
  2. Step 2: Convert to fraction form
    40,840.20/57,234.60 = 40,840.20/x
  3. Step 3: Cross multiply
    40,840.20x = 57,234.60 × 40,840.20
  4. Step 4: Simplify right side
    40,840.20x = 2,337,472,510.92
  5. Step 5: Solve for x
    x = 2,337,472,510.92/40,840.20
  6. Step 6: Final answer
    x = 57,234.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.