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Finding the Fourth Proportional to 5,858.76, 8,780.58 and 2,391.96

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Solution

The fourth proportional to 5,858.76, 8,780.58 and 2,391.96 is: 3,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.76 : 8,780.58 = 2,391.96 : x
  2. Step 2: Convert to fraction form
    5,858.76/8,780.58 = 2,391.96/x
  3. Step 3: Cross multiply
    5,858.76x = 8,780.58 × 2,391.96
  4. Step 4: Simplify right side
    5,858.76x = 21,002,796.14
  5. Step 5: Solve for x
    x = 21,002,796.14/5,858.76
  6. Step 6: Final answer
    x = 3,584.85

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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.