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Finding the Fourth Proportional to 7,236.75, 10,855.14 and 1,764.75

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Solution

The fourth proportional to 7,236.75, 10,855.14 and 1,764.75 is: 2,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.75 : 10,855.14 = 1,764.75 : x
  2. Step 2: Convert to fraction form
    7,236.75/10,855.14 = 1,764.75/x
  3. Step 3: Cross multiply
    7,236.75x = 10,855.14 × 1,764.75
  4. Step 4: Simplify right side
    7,236.75x = 19,156,608.32
  5. Step 5: Solve for x
    x = 19,156,608.32/7,236.75
  6. Step 6: Final answer
    x = 2,647.13

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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.