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Finding the Fourth Proportional to 8,951.57, 12,352.47 and 4,972.34

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Solution

The fourth proportional to 8,951.57, 12,352.47 and 4,972.34 is: 6,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.57 : 12,352.47 = 4,972.34 : x
  2. Step 2: Convert to fraction form
    8,951.57/12,352.47 = 4,972.34/x
  3. Step 3: Cross multiply
    8,951.57x = 12,352.47 × 4,972.34
  4. Step 4: Simplify right side
    8,951.57x = 61,420,618.92
  5. Step 5: Solve for x
    x = 61,420,618.92/8,951.57
  6. Step 6: Final answer
    x = 6,861.44

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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.