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Finding the Fourth Proportional to 5,876.29, 8,815.20 and 3,103.07

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Solution

The fourth proportional to 5,876.29, 8,815.20 and 3,103.07 is: 4,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,876.29 : 8,815.20 = 3,103.07 : x
  2. Step 2: Convert to fraction form
    5,876.29/8,815.20 = 3,103.07/x
  3. Step 3: Cross multiply
    5,876.29x = 8,815.20 × 3,103.07
  4. Step 4: Simplify right side
    5,876.29x = 27,354,160.47
  5. Step 5: Solve for x
    x = 27,354,160.47/5,876.29
  6. Step 6: Final answer
    x = 4,655.01

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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.