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Finding the Fourth Proportional to 5,808.78, 8,713.16 and 2,345.22

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Solution

The fourth proportional to 5,808.78, 8,713.16 and 2,345.22 is: 3,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.78 : 8,713.16 = 2,345.22 : x
  2. Step 2: Convert to fraction form
    5,808.78/8,713.16 = 2,345.22/x
  3. Step 3: Cross multiply
    5,808.78x = 8,713.16 × 2,345.22
  4. Step 4: Simplify right side
    5,808.78x = 20,434,277.10
  5. Step 5: Solve for x
    x = 20,434,277.10/5,808.78
  6. Step 6: Final answer
    x = 3,517.83

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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.