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Finding the Fourth Proportional to 4,788.93, 7,172.94 and 2,318.52

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Solution

The fourth proportional to 4,788.93, 7,172.94 and 2,318.52 is: 3,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.93 : 7,172.94 = 2,318.52 : x
  2. Step 2: Convert to fraction form
    4,788.93/7,172.94 = 2,318.52/x
  3. Step 3: Cross multiply
    4,788.93x = 7,172.94 × 2,318.52
  4. Step 4: Simplify right side
    4,788.93x = 16,630,604.85
  5. Step 5: Solve for x
    x = 16,630,604.85/4,788.93
  6. Step 6: Final answer
    x = 3,472.72

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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.