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Finding the Fourth Proportional to 7,261.01, 10,891.53 and 1,996.09

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Solution

The fourth proportional to 7,261.01, 10,891.53 and 1,996.09 is: 2,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.01 : 10,891.53 = 1,996.09 : x
  2. Step 2: Convert to fraction form
    7,261.01/10,891.53 = 1,996.09/x
  3. Step 3: Cross multiply
    7,261.01x = 10,891.53 × 1,996.09
  4. Step 4: Simplify right side
    7,261.01x = 21,740,474.12
  5. Step 5: Solve for x
    x = 21,740,474.12/7,261.01
  6. Step 6: Final answer
    x = 2,994.14

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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.