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Finding the Fourth Proportional to 4,788.95, 7,190.16 and 2,450.63

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Solution

The fourth proportional to 4,788.95, 7,190.16 and 2,450.63 is: 3,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.95 : 7,190.16 = 2,450.63 : x
  2. Step 2: Convert to fraction form
    4,788.95/7,190.16 = 2,450.63/x
  3. Step 3: Cross multiply
    4,788.95x = 7,190.16 × 2,450.63
  4. Step 4: Simplify right side
    4,788.95x = 17,620,421.80
  5. Step 5: Solve for x
    x = 17,620,421.80/4,788.95
  6. Step 6: Final answer
    x = 3,679.39

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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.