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Finding the Fourth Proportional to 5,808.08, 8,712.76 and 1,859.70

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Solution

The fourth proportional to 5,808.08, 8,712.76 and 1,859.70 is: 2,789.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.08 : 8,712.76 = 1,859.70 : x
  2. Step 2: Convert to fraction form
    5,808.08/8,712.76 = 1,859.70/x
  3. Step 3: Cross multiply
    5,808.08x = 8,712.76 × 1,859.70
  4. Step 4: Simplify right side
    5,808.08x = 16,203,119.77
  5. Step 5: Solve for x
    x = 16,203,119.77/5,808.08
  6. Step 6: Final answer
    x = 2,789.75

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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.