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Finding the Fourth Proportional to 7,305.92, 10,081.97 and 4,119.19

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Solution

The fourth proportional to 7,305.92, 10,081.97 and 4,119.19 is: 5,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.92 : 10,081.97 = 4,119.19 : x
  2. Step 2: Convert to fraction form
    7,305.92/10,081.97 = 4,119.19/x
  3. Step 3: Cross multiply
    7,305.92x = 10,081.97 × 4,119.19
  4. Step 4: Simplify right side
    7,305.92x = 41,529,579.56
  5. Step 5: Solve for x
    x = 41,529,579.56/7,305.92
  6. Step 6: Final answer
    x = 5,684.37

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Half scale
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Double scale
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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.