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Finding the Fourth Proportional to 2,616.11, 3,924.20 and 767.26

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Solution

The fourth proportional to 2,616.11, 3,924.20 and 767.26 is: 1,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.11 : 3,924.20 = 767.26 : x
  2. Step 2: Convert to fraction form
    2,616.11/3,924.20 = 767.26/x
  3. Step 3: Cross multiply
    2,616.11x = 3,924.20 × 767.26
  4. Step 4: Simplify right side
    2,616.11x = 3,010,881.69
  5. Step 5: Solve for x
    x = 3,010,881.69/2,616.11
  6. Step 6: Final answer
    x = 1,150.90

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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.