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Finding the Fourth Proportional to 4,676.60, 7,017.60 and 1,755.20

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Solution

The fourth proportional to 4,676.60, 7,017.60 and 1,755.20 is: 2,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.60 : 7,017.60 = 1,755.20 : x
  2. Step 2: Convert to fraction form
    4,676.60/7,017.60 = 1,755.20/x
  3. Step 3: Cross multiply
    4,676.60x = 7,017.60 × 1,755.20
  4. Step 4: Simplify right side
    4,676.60x = 12,317,291.52
  5. Step 5: Solve for x
    x = 12,317,291.52/4,676.60
  6. Step 6: Final answer
    x = 2,633.81

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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.