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Finding the Fourth Proportional to 5,297.44, 7,946.16 and 2,179.12

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Solution

The fourth proportional to 5,297.44, 7,946.16 and 2,179.12 is: 3,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.44 : 7,946.16 = 2,179.12 : x
  2. Step 2: Convert to fraction form
    5,297.44/7,946.16 = 2,179.12/x
  3. Step 3: Cross multiply
    5,297.44x = 7,946.16 × 2,179.12
  4. Step 4: Simplify right side
    5,297.44x = 17,315,636.18
  5. Step 5: Solve for x
    x = 17,315,636.18/5,297.44
  6. Step 6: Final answer
    x = 3,268.68

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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.