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Finding the Fourth Proportional to 5,947.16, 8,920.73 and 2,661.80

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Solution

The fourth proportional to 5,947.16, 8,920.73 and 2,661.80 is: 3,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,947.16 : 8,920.73 = 2,661.80 : x
  2. Step 2: Convert to fraction form
    5,947.16/8,920.73 = 2,661.80/x
  3. Step 3: Cross multiply
    5,947.16x = 8,920.73 × 2,661.80
  4. Step 4: Simplify right side
    5,947.16x = 23,745,161.16
  5. Step 5: Solve for x
    x = 23,745,161.16/5,947.16
  6. Step 6: Final answer
    x = 3,992.69

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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.