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Finding the Fourth Proportional to 6,616.05, 9,920.93 and 3,843.58

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Solution

The fourth proportional to 6,616.05, 9,920.93 and 3,843.58 is: 5,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.05 : 9,920.93 = 3,843.58 : x
  2. Step 2: Convert to fraction form
    6,616.05/9,920.93 = 3,843.58/x
  3. Step 3: Cross multiply
    6,616.05x = 9,920.93 × 3,843.58
  4. Step 4: Simplify right side
    6,616.05x = 38,131,888.13
  5. Step 5: Solve for x
    x = 38,131,888.13/6,616.05
  6. Step 6: Final answer
    x = 5,763.54

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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.