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Finding the Fourth Proportional to 8,951.30, 12,352.44 and 4,972.22

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Solution

The fourth proportional to 8,951.30, 12,352.44 and 4,972.22 is: 6,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.30 : 12,352.44 = 4,972.22 : x
  2. Step 2: Convert to fraction form
    8,951.30/12,352.44 = 4,972.22/x
  3. Step 3: Cross multiply
    8,951.30x = 12,352.44 × 4,972.22
  4. Step 4: Simplify right side
    8,951.30x = 61,419,049.22
  5. Step 5: Solve for x
    x = 61,419,049.22/8,951.30
  6. Step 6: Final answer
    x = 6,861.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.