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Finding the Fourth Proportional to 7,863.09, 11,790.10 and 4,703.68

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Solution

The fourth proportional to 7,863.09, 11,790.10 and 4,703.68 is: 7,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.09 : 11,790.10 = 4,703.68 : x
  2. Step 2: Convert to fraction form
    7,863.09/11,790.10 = 4,703.68/x
  3. Step 3: Cross multiply
    7,863.09x = 11,790.10 × 4,703.68
  4. Step 4: Simplify right side
    7,863.09x = 55,456,857.57
  5. Step 5: Solve for x
    x = 55,456,857.57/7,863.09
  6. Step 6: Final answer
    x = 7,052.81

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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.