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Finding the Fourth Proportional to 8,207.62, 12,311.44 and 2,051.62

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Solution

The fourth proportional to 8,207.62, 12,311.44 and 2,051.62 is: 3,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.62 : 12,311.44 = 2,051.62 : x
  2. Step 2: Convert to fraction form
    8,207.62/12,311.44 = 2,051.62/x
  3. Step 3: Cross multiply
    8,207.62x = 12,311.44 × 2,051.62
  4. Step 4: Simplify right side
    8,207.62x = 25,258,396.53
  5. Step 5: Solve for x
    x = 25,258,396.53/8,207.62
  6. Step 6: Final answer
    x = 3,077.43

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.