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Finding the Fourth Proportional to 5,843.39, 8,765.16 and 1,947.80

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Solution

The fourth proportional to 5,843.39, 8,765.16 and 1,947.80 is: 2,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,843.39 : 8,765.16 = 1,947.80 : x
  2. Step 2: Convert to fraction form
    5,843.39/8,765.16 = 1,947.80/x
  3. Step 3: Cross multiply
    5,843.39x = 8,765.16 × 1,947.80
  4. Step 4: Simplify right side
    5,843.39x = 17,072,754.91
  5. Step 5: Solve for x
    x = 17,072,754.91/5,843.39
  6. Step 6: Final answer
    x = 2,921.72

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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.