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Finding the Fourth Proportional to 8,234.70, 12,352.05 and 4,954.20

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Solution

The fourth proportional to 8,234.70, 12,352.05 and 4,954.20 is: 7,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,234.70 : 12,352.05 = 4,954.20 : x
  2. Step 2: Convert to fraction form
    8,234.70/12,352.05 = 4,954.20/x
  3. Step 3: Cross multiply
    8,234.70x = 12,352.05 × 4,954.20
  4. Step 4: Simplify right side
    8,234.70x = 61,194,526.11
  5. Step 5: Solve for x
    x = 61,194,526.11/8,234.70
  6. Step 6: Final answer
    x = 7,431.30

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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.