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Finding the Fourth Proportional to 9,251.54, 12,766.98 and 5,272.88

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Solution

The fourth proportional to 9,251.54, 12,766.98 and 5,272.88 is: 7,276.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.54 : 12,766.98 = 5,272.88 : x
  2. Step 2: Convert to fraction form
    9,251.54/12,766.98 = 5,272.88/x
  3. Step 3: Cross multiply
    9,251.54x = 12,766.98 × 5,272.88
  4. Step 4: Simplify right side
    9,251.54x = 67,318,753.50
  5. Step 5: Solve for x
    x = 67,318,753.50/9,251.54
  6. Step 6: Final answer
    x = 7,276.49

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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.