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Finding the Fourth Proportional to 9,376.59, 12,944.13 and 5,396.92

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Solution

The fourth proportional to 9,376.59, 12,944.13 and 5,396.92 is: 7,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.59 : 12,944.13 = 5,396.92 : x
  2. Step 2: Convert to fraction form
    9,376.59/12,944.13 = 5,396.92/x
  3. Step 3: Cross multiply
    9,376.59x = 12,944.13 × 5,396.92
  4. Step 4: Simplify right side
    9,376.59x = 69,858,434.08
  5. Step 5: Solve for x
    x = 69,858,434.08/9,376.59
  6. Step 6: Final answer
    x = 7,450.30

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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.