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Finding the Fourth Proportional to 8,205.73, 11,322.68 and 4,620.16

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Solution

The fourth proportional to 8,205.73, 11,322.68 and 4,620.16 is: 6,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.73 : 11,322.68 = 4,620.16 : x
  2. Step 2: Convert to fraction form
    8,205.73/11,322.68 = 4,620.16/x
  3. Step 3: Cross multiply
    8,205.73x = 11,322.68 × 4,620.16
  4. Step 4: Simplify right side
    8,205.73x = 52,312,593.23
  5. Step 5: Solve for x
    x = 52,312,593.23/8,205.73
  6. Step 6: Final answer
    x = 6,375.13

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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.