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Finding the Fourth Proportional to 2,966.68, 4,450.10 and 775.36

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Solution

The fourth proportional to 2,966.68, 4,450.10 and 775.36 is: 1,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.68 : 4,450.10 = 775.36 : x
  2. Step 2: Convert to fraction form
    2,966.68/4,450.10 = 775.36/x
  3. Step 3: Cross multiply
    2,966.68x = 4,450.10 × 775.36
  4. Step 4: Simplify right side
    2,966.68x = 3,450,429.54
  5. Step 5: Solve for x
    x = 3,450,429.54/2,966.68
  6. Step 6: Final answer
    x = 1,163.06

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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.