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Finding the Fourth Proportional to 4,641.21, 6,960.07 and 1,866.94

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Solution

The fourth proportional to 4,641.21, 6,960.07 and 1,866.94 is: 2,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.21 : 6,960.07 = 1,866.94 : x
  2. Step 2: Convert to fraction form
    4,641.21/6,960.07 = 1,866.94/x
  3. Step 3: Cross multiply
    4,641.21x = 6,960.07 × 1,866.94
  4. Step 4: Simplify right side
    4,641.21x = 12,994,033.09
  5. Step 5: Solve for x
    x = 12,994,033.09/4,641.21
  6. Step 6: Final answer
    x = 2,799.71

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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.