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Finding the Fourth Proportional to 4,755.39, 7,130.01 and 1,983.96

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Solution

The fourth proportional to 4,755.39, 7,130.01 and 1,983.96 is: 2,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.39 : 7,130.01 = 1,983.96 : x
  2. Step 2: Convert to fraction form
    4,755.39/7,130.01 = 1,983.96/x
  3. Step 3: Cross multiply
    4,755.39x = 7,130.01 × 1,983.96
  4. Step 4: Simplify right side
    4,755.39x = 14,145,654.64
  5. Step 5: Solve for x
    x = 14,145,654.64/4,755.39
  6. Step 6: Final answer
    x = 2,974.66

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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.