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Finding the Fourth Proportional to 45,400.80, 68,096.40 and 14,234.40

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Solution

The fourth proportional to 45,400.80, 68,096.40 and 14,234.40 is: 21,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,400.80 : 68,096.40 = 14,234.40 : x
  2. Step 2: Convert to fraction form
    45,400.80/68,096.40 = 14,234.40/x
  3. Step 3: Cross multiply
    45,400.80x = 68,096.40 × 14,234.40
  4. Step 4: Simplify right side
    45,400.80x = 969,311,396.16
  5. Step 5: Solve for x
    x = 969,311,396.16/45,400.80
  6. Step 6: Final answer
    x = 21,350.10

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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.