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Finding the Fourth Proportional to 9,016.85, 12,497.80 and 8,497.74

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Solution

The fourth proportional to 9,016.85, 12,497.80 and 8,497.74 is: 11,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,016.85 : 12,497.80 = 8,497.74 : x
  2. Step 2: Convert to fraction form
    9,016.85/12,497.80 = 8,497.74/x
  3. Step 3: Cross multiply
    9,016.85x = 12,497.80 × 8,497.74
  4. Step 4: Simplify right side
    9,016.85x = 106,203,033.73
  5. Step 5: Solve for x
    x = 106,203,033.73/9,016.85
  6. Step 6: Final answer
    x = 11,778.28

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.