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Finding the Fourth Proportional to 5,311.66, 7,967.50 and 2,193.44

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Solution

The fourth proportional to 5,311.66, 7,967.50 and 2,193.44 is: 3,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.66 : 7,967.50 = 2,193.44 : x
  2. Step 2: Convert to fraction form
    5,311.66/7,967.50 = 2,193.44/x
  3. Step 3: Cross multiply
    5,311.66x = 7,967.50 × 2,193.44
  4. Step 4: Simplify right side
    5,311.66x = 17,476,233.20
  5. Step 5: Solve for x
    x = 17,476,233.20/5,311.66
  6. Step 6: Final answer
    x = 3,290.16

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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.