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Finding the Fourth Proportional to 3,593.71, 4,959.21 and 2,021.89

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Solution

The fourth proportional to 3,593.71, 4,959.21 and 2,021.89 is: 2,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.71 : 4,959.21 = 2,021.89 : x
  2. Step 2: Convert to fraction form
    3,593.71/4,959.21 = 2,021.89/x
  3. Step 3: Cross multiply
    3,593.71x = 4,959.21 × 2,021.89
  4. Step 4: Simplify right side
    3,593.71x = 10,026,977.11
  5. Step 5: Solve for x
    x = 10,026,977.11/3,593.71
  6. Step 6: Final answer
    x = 2,790.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.