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Finding the Fourth Proportional to 7,305.22, 10,081.29 and 3,993.22

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Solution

The fourth proportional to 7,305.22, 10,081.29 and 3,993.22 is: 5,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.22 : 10,081.29 = 3,993.22 : x
  2. Step 2: Convert to fraction form
    7,305.22/10,081.29 = 3,993.22/x
  3. Step 3: Cross multiply
    7,305.22x = 10,081.29 × 3,993.22
  4. Step 4: Simplify right side
    7,305.22x = 40,256,808.85
  5. Step 5: Solve for x
    x = 40,256,808.85/7,305.22
  6. Step 6: Final answer
    x = 5,510.69

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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.