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Finding the Fourth Proportional to 6,855.14, 9,460.12 and 3,711.33

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Solution

The fourth proportional to 6,855.14, 9,460.12 and 3,711.33 is: 5,121.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.14 : 9,460.12 = 3,711.33 : x
  2. Step 2: Convert to fraction form
    6,855.14/9,460.12 = 3,711.33/x
  3. Step 3: Cross multiply
    6,855.14x = 9,460.12 × 3,711.33
  4. Step 4: Simplify right side
    6,855.14x = 35,109,579.86
  5. Step 5: Solve for x
    x = 35,109,579.86/6,855.14
  6. Step 6: Final answer
    x = 5,121.65

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