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Finding the Fourth Proportional to 9,017, 12,469.38 and 8,604.44

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Solution

The fourth proportional to 9,017, 12,469.38 and 8,604.44 is: 11,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017 : 12,469.38 = 8,604.44 : x
  2. Step 2: Convert to fraction form
    9,017/12,469.38 = 8,604.44/x
  3. Step 3: Cross multiply
    9,017x = 12,469.38 × 8,604.44
  4. Step 4: Simplify right side
    9,017x = 107,292,032.05
  5. Step 5: Solve for x
    x = 107,292,032.05/9,017
  6. Step 6: Final answer
    x = 11,898.86

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Half scale
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Double scale
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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.