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Finding the Fourth Proportional to 5,808.91, 8,713.85 and 1,860.75

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Solution

The fourth proportional to 5,808.91, 8,713.85 and 1,860.75 is: 2,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.91 : 8,713.85 = 1,860.75 : x
  2. Step 2: Convert to fraction form
    5,808.91/8,713.85 = 1,860.75/x
  3. Step 3: Cross multiply
    5,808.91x = 8,713.85 × 1,860.75
  4. Step 4: Simplify right side
    5,808.91x = 16,214,296.39
  5. Step 5: Solve for x
    x = 16,214,296.39/5,808.91
  6. Step 6: Final answer
    x = 2,791.28

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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.