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Finding the Fourth Proportional to 7,261.44, 10,892.88 and 2,881.92

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Solution

The fourth proportional to 7,261.44, 10,892.88 and 2,881.92 is: 4,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.44 : 10,892.88 = 2,881.92 : x
  2. Step 2: Convert to fraction form
    7,261.44/10,892.88 = 2,881.92/x
  3. Step 3: Cross multiply
    7,261.44x = 10,892.88 × 2,881.92
  4. Step 4: Simplify right side
    7,261.44x = 31,392,408.73
  5. Step 5: Solve for x
    x = 31,392,408.73/7,261.44
  6. Step 6: Final answer
    x = 4,323.17

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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.