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Finding the Fourth Proportional to 4,721.97, 7,083.20 and 1,800.51

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Solution

The fourth proportional to 4,721.97, 7,083.20 and 1,800.51 is: 2,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.97 : 7,083.20 = 1,800.51 : x
  2. Step 2: Convert to fraction form
    4,721.97/7,083.20 = 1,800.51/x
  3. Step 3: Cross multiply
    4,721.97x = 7,083.20 × 1,800.51
  4. Step 4: Simplify right side
    4,721.97x = 12,753,372.43
  5. Step 5: Solve for x
    x = 12,753,372.43/4,721.97
  6. Step 6: Final answer
    x = 2,700.86

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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.