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Finding the Fourth Proportional to 4,788.75, 7,176.17 and 3,404.87

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Solution

The fourth proportional to 4,788.75, 7,176.17 and 3,404.87 is: 5,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.75 : 7,176.17 = 3,404.87 : x
  2. Step 2: Convert to fraction form
    4,788.75/7,176.17 = 3,404.87/x
  3. Step 3: Cross multiply
    4,788.75x = 7,176.17 × 3,404.87
  4. Step 4: Simplify right side
    4,788.75x = 24,433,898.58
  5. Step 5: Solve for x
    x = 24,433,898.58/4,788.75
  6. Step 6: Final answer
    x = 5,102.35

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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.