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Finding the Fourth Proportional to 9,251.55, 13,883.48 and 8,636.46

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Solution

The fourth proportional to 9,251.55, 13,883.48 and 8,636.46 is: 12,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.55 : 13,883.48 = 8,636.46 : x
  2. Step 2: Convert to fraction form
    9,251.55/13,883.48 = 8,636.46/x
  3. Step 3: Cross multiply
    9,251.55x = 13,883.48 × 8,636.46
  4. Step 4: Simplify right side
    9,251.55x = 119,904,119.68
  5. Step 5: Solve for x
    x = 119,904,119.68/9,251.55
  6. Step 6: Final answer
    x = 12,960.44

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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.