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Finding the Fourth Proportional to 9,334.92, 12,881.94 and 5,143.14

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Solution

The fourth proportional to 9,334.92, 12,881.94 and 5,143.14 is: 7,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.92 : 12,881.94 = 5,143.14 : x
  2. Step 2: Convert to fraction form
    9,334.92/12,881.94 = 5,143.14/x
  3. Step 3: Cross multiply
    9,334.92x = 12,881.94 × 5,143.14
  4. Step 4: Simplify right side
    9,334.92x = 66,253,620.89
  5. Step 5: Solve for x
    x = 66,253,620.89/9,334.92
  6. Step 6: Final answer
    x = 7,097.40

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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.